The text "Night of the Grizzlies" in the jaws of a large bear
MICHAEL S. HEATH

Night of the Grizzlies

On a summer night in 1967, a tragedy in Glacier National Park would transform the way we care for wild places.

By Lauren Tarshis
From the October/November 2020 Issue

Learning Objective: Students will read a narrative nonfiction article and identify how humans’ leaving garbage in national parks changed the behavior and well-being of grizzly bears, and what happened as a result.

Lexile: 700L-800L, 800L-900L
Guided Reading Level: T
DRA Level: 50
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Cause and Effect

As you read, look for what caused two grizzly bear attacks and what changed as a result of them.

It was July 1967. Two 14-year-old boys, Steve Ashlock and John Cook, were enjoying a fishing trip in Montana’s Glacier National Park. They’d arrived the day before, excited for three days of cooking over a campfire and sleeping under the stars.

Glacier had been packed with visitors all summer. But Steve and John quickly escaped the honking cars, crowds of hikers, and trash-covered trails. They hiked several miles up to Trout Lake, one of the glittering lakes set among Glacier’s thick forests and rugged mountains.

The boys’ first day was perfect. They set up their campsite and feasted on the trout they caught in the lake. Best of all: They spotted a group of bears that came to the lake for a drink. Some were the smaller and more common black bears. But at least two were grizzlies. The boys recognized their lighter-colored fur and the hump between their shoulders.

What luck!

Glacier was filled with marvelous creatures. Hawks peered down from trees. Bighorn sheep perched on rocky cliffs. Mountain lions snuck through the trees. But few creatures inspired awe like the grizzly, North America’s biggest and most powerful animal.

Steve and John understood that grizzlies could be dangerous, and the boys kept their distance. But they weren’t frightened. They knew that grizzlies usually stayed away from humans. In Glacier’s 57-year history, there had never been a single deadly grizzly bear attack.

That was about to change.

Terror was just ahead. Two horrific grizzly attacks would soon shatter the peaceful beauty of Glacier National Park. And ideas about grizzlies—and humans—would never be the same.

It was July 1967. Two 14-year-old boys, Steve Ashlock and John Cook, were enjoying a fishing trip in Montana’s Glacier National Park. They’d arrived the day before. They were excited for three days of camping and fishing.

Glacier had been crowded all summer. But Steve and John quickly escaped the honking cars, crowds of hikers, and trash-covered trails. They hiked several miles up to Trout Lake. This is a beautiful lake surrounded by Glacier’s thick forests and rugged mountains.

The boys’ first day was perfect. They set up their campsite and fished. Best of all: They spotted a group of bears that came to the lake for a drink. Some were the smaller and more common black bears. But at least two were grizzlies. The boys could tell because these bears had lighter-colored fur and a hump between their shoulders.

What luck!

Glacier was filled with marvelous creatures like hawks and bighorn sheep. But few creatures inspired awe like the grizzly. They are North America’s biggest and most powerful animal.

Steve and John understood that grizzlies could be dangerous. But they weren’t frightened. They knew that grizzlies usually stayed away from humans. In Glacier’s 57-year history, there had never been a single deadly grizzly bear attack.

That was about to change.

There would soon be two horrific grizzly attacks at Glacier National Park. Ideas about grizzlies—and humans—would never be the same.

ACCENT ALASKA.COM/ALAMY STOCK PHOTO

Feeding Grizzlies

Bears that eat human food and garbage can lose their natural fear of humans, which puts them—and humans— at risk.

Powerful and Sacred

Grizzlies have lived in North America for about 50,000 years—far longer than humans have. When the first people arrived, more than 12,000 years ago, tens of thousands of grizzlies lived up and down the western part of the continent.

America’s first people formed dozens of nations and tribes. Each group had its own languages, customs, and beliefs. But many of these groups shared a deep respect for bears. In Cheyenne legends, powerful bears tested the strength and bravery of warriors. To the Hopi people, bears were sacred creatures with amazing powers of healing.

Unlike black bears, which could once be found all across America, grizzlies lived only in the West. It wasn’t until the early 1800s that stories of these larger, more powerful bears began to reach the East. Some of these stories made grizzlies seem like monsters— mindless killers with a taste for human flesh.

In the coming decades, as thousands of people moved out West, many killed grizzlies whenever possible. Tens of thousands of the bears were shot and poisoned. Nearly all the rest were chased from the habitats where they had lived for thousands of years.

By the time John and Steve were growing up in Montana, fewer than 1,000 grizzlies remained in the lower 48 states. Most lived in the northern wilderness of Montana, Idaho, and Wyoming. The only truly safe place for a grizzly was in one of the area’s two national parks, Glacier and Yellowstone. In these parks, hunting wasn’t allowed and all animals were protected by law.

Grizzlies have lived in North America much longer than humans. The first people arrived more than 12,000 years ago. Back then, tens of thousands of grizzlies lived here. Many of America’s first people came to see these bears as sacred creatures.

Unlike black bears, which could once be found all across America, grizzlies lived only in the West. It wasn’t until the early 1800s that stories of these larger, more powerful bears began to reach the East. Some of these stories made grizzlies seem like monsters who hunted humans.

This is one reason why people started hunting grizzlies. Tens of thousands of the bears were shot and poisoned. Nearly all the rest were chased from their habitats.

By the time John and Steve were growing up in Montana, fewer than 1,000 grizzlies remained in the lower 48 states. Most lived in the northern wilderness of Montana, Idaho, and Wyoming. The only truly safe place for a grizzly was in one of the area’s two national parks, Glacier and Yellowstone. In these parks, hunting wasn’t allowed. All animals were protected by law.

SEAN XU/SHUTTERSTOCK.COM (GLACIER NATIONAL PARK); JIM MCMAHON/MAPMAN ® (MAP)

Where in the World: Glacier National Park

Highly Intelligent

By the mid-1900s, scientists had come to understand that grizzlies were not mindless monsters. In fact, the bears are highly intelligent, with excellent memories. They are shy and usually avoid humans. They will eat almost anything but prefer roots and berries. In Glacier, their favorite treats are chubby little squirrels called marmots.

Grizzlies do have fearsome powers. Their front paws can crack a skull in one swipe. Their knife-sharp claws can tear apart tree stumps. Their jaws can chomp through metal and bone.

But it is unusual for a grizzly to use its deadly powers on a human. Normally, a grizzly attacks only if taken by surprise or if it feels threatened. And so John and Steve didn’t feel afraid on that July evening when they spotted grizzly bears sipping cool water from Trout Lake. In fact, they felt lucky to see one of Earth’s most amazing creatures in the wild.

It was what happened the next evening that filled them with terror.

The boys were out on the lake, horsing around on a big pile of floating logs. Suddenly, a strange sound caught their attention. They looked over at their campsite. A skinny grizzly was devouring a loaf of their bread. They hoped the bear would leave. But then it started to tear apart their backpacks.

The boys shouted at the bear, hoping that their voices would scare it off. But no amount of yelling could chase it away.

The boys weren’t grizzly experts, but something about this bear seemed unusual— and dangerous. They waited until the bear was distracted by a pan of trout they had prepared for dinner. Then they snuck to shore. They threw on their boots and ran, praying the grizzly wouldn’t chase after them.

What John and Steve didn’t know was that Glacier was in the middle of a grizzly crisis. Some grizzlies had lost their natural fear of humans and were behaving aggressively. But the real problem wasn’t the bears.

It was people.

By the mid-1900s, scientists had come to understand that grizzlies were not monsters. In fact, they are intelligent and shy. They usually avoid humans. They will eat almost anything but prefer roots and berries.

Grizzlies do have fearsome powers. Their front paws can crack a skull. Their knife-sharp claws can tear apart tree stumps. Their jaws can chomp through metal and bone.

But it is unusual for a grizzly to use its deadly powers on a human. Normally, a grizzly attacks only if taken by surprise or if it feels threatened.

This is why John and Steve didn’t feel afraid on that July evening when they spotted grizzly bears. They felt lucky to see these amazing creatures. It was what happened the next evening that filled them with terror.

The boys were out on the lake, playing around on a big pile of floating logs. Suddenly, a strange sound caught their attention. They looked over at their campsite. A skinny grizzly was devouring a loaf of their bread. They hoped the bear would leave. But then it started to tear apart their backpacks.

The boys shouted at the bear, hoping that their voices would scare it off. But no amount of yelling could chase it away.

The boys knew something about this bear seemed unusual—and dangerous. They waited until the bear was distracted. Then they snuck to shore. They threw on their boots and ran. They prayed the grizzly wouldn’t chase after them.

What John and Steve didn’t know was that Glacier was in the middle of a grizzly crisis. Some grizzlies had lost their natural fear of humans. They were behaving aggressively. But the real problem wasn’t the bears.

It was people.

"Grizzly Show"

More specifically, it was the garbage that people were leaving all over the park—leftover food at campsites, wrappers and broken bottles on trails. Glacier was filled with litter. Some people in the park were even using garbage to lure grizzlies closer to humans on purpose.

Each evening at a hotel called the Granite Park Chalet, workers would dump leftover food from the dining room into an outdoor pit. Guests would then crowd onto a balcony, clapping and shouting as they watched grizzlies fight over leftover hot dogs and chili. Some were disgusted by this cruel event. But night after night, the show went on.

Feeding human food to a wild animal isn’t just unhealthy for the animal. It can also permanently change the animal’s habits and relationship to the natural environment. In Glacier, some grizzlies started to depend on garbage for survival. They began losing their natural shyness toward humans and moved into busier parts of the park. For these bears, humans had become a source of food.

Actually, it was the garbage that people were leaving all over the park. Glacier was filled with litter. Some people in the park were even using garbage and leftover food as bait for grizzlies. They wanted to see grizzlies up close.

This was happening every night at a hotel called the Granite Park Chalet. Workers would dump leftover food into an outdoor pit. Guests would then crowd onto a balcony. They would clap and shout as they watched grizzlies fight over leftover hot dogs and chili.

Feeding human food to a wild animal is unhealthy for the animal. It can also change the way it acts in the wild. In Glacier, some grizzlies started to depend on garbage for survival. They began losing their natural shyness toward humans. They moved into busier parts of the park. For these bears, humans had become a source of food.

A Terrifying Hike

HOLGER LEUE/GETTY IMAGES

John and Steve made it out of the wilderness that night. After a terrifying 4-mile hike through the darkness, they arrived at a ranger station. They told their story to the ranger on duty.

The man was not surprised. He and other rangers had been hearing about that strange grizzly all summer. But the rangers had bigger problems to deal with, like the wildfires that were burning in some areas of the park.

The boys spent the night in a cabin. When they returned to their campsite the next morning, the grizzly was gone. But before it left, it had ripped apart their tent, smashed their lantern, and eaten all their food. Cans of spaghetti and chili were torn apart.

The boys left Glacier with what little camping gear they could save. Two weeks later, they’d realize that they had been lucky to escape with their lives.

John and Steve made it out of the wilderness that night. They hiked 4 miles through the darkness. They made it to a ranger station. They told their story to the ranger on duty.

The man was not surprised. He and other rangers had been hearing about that strange grizzly all summer.

The boys spent the night in a cabin. When they returned to their campsite the next morning, the grizzly was gone. But before it left, it had ripped apart their tent. It had smashed their lantern and eaten all their food. Cans of spaghetti and chili were torn apart.

The boys left Glacier with what little camping gear they could save. Two weeks later, they’d realize how lucky they were to make it out alive.

Shocking News

SHUTTERSTOCK.COM

On August 13, the world woke up to shocking news from Glacier. During the night, two 19-year-old women had been killed by two different grizzly bears. The attacks were not related; they happened 7 miles apart. Neither grizzly had been surprised or threatened by people. The bears attacked the women as they slept in their tents.

How could this have happened?

In the days that followed, this was the question that echoed across Glacier’s forests and lakes. Never before had there been a deadly grizzly attack in Glacier. How was it possible that in a single night, two grizzlies had become killers?

Glacier’s leaders scrambled to give an answer. It was the heat, they said. Or the wildfires. Or maybe lightning had spooked the bears.

Rangers were ordered to track down the two grizzlies and euthanize them—kill them painlessly. One was a mother bear that had been seen with her two cubs at the Granite Park garbage pit. Her front paw was badly torn, likely from broken glass. The other bear was in even worse shape. It was starving and had broken glass in its teeth.

This was the skinny bear that John and Steve had seen at Trout Lake.

Finally, Glacier’s leaders were forced to face the truth: It was not heat or fires or lightning that had caused the grizzlies to turn violent. It was garbage.

For years, rangers and park leaders had known trash was a problem. All summer they had been getting complaints about grizzlies lurking near campgrounds and threatening humans.

Yet no action was taken. As a result, two women had died. Four grizzlies were also dead; the mother grizzly’s two cubs were also euthanized.

On August 13, the world woke up to shocking news from Glacier. During the night, two 19-year-old women had been killed by two different grizzly bears. The attacks happened 7 miles apart. Neither grizzly had been surprised or threatened by people. The bears attacked the women as they slept in their tents.

How could this have happened?

Never before had there been a deadly grizzly attack in Glacier. How was it possible that in a single night, two grizzlies had become killers?

Glacier’s leaders had no answer to this question. They ordered rangers to find the two grizzlies and euthanize them—kill them painlessly. One was a mother bear. This bear had been seen with her two cubs at the Granite Park garbage pit. Her front paw was badly torn, likely from broken glass. The other bear was in even worse shape. It was starving and had broken glass in its teeth.

This was the skinny bear that John and Steve had seen at Trout Lake.

Finally, Glacier’s leaders were forced to face the truth. It was the garbage in the park that had turned the grizzlies into killers.

For years, rangers and park leaders had known trash was a problem. All summer they had been getting complaints about grizzlies lurking near campgrounds and threatening humans.

Yet no action was taken. As a result, two women had died. Four grizzlies were also dead; the mother grizzly’s two cubs were also euthanized.

NATIONAL PARKS ASSOCIATION (THEN); ACCENT ALASKA.COM/ALAMY STOCK PHOTO (NOW)

From the early 1900s through the 1940s in Yellowstone National Park, “lunch counters” were used to lure bears for tourists’ entertainment. They were basically giant garbage heaps. Today, such practices are banned. Instead, bearproof trash cans protect bears from getting into human garbage and signs remind tourists not to feed the wildlife.

A Transformation

Nothing could change the tragic events of “the night of the grizzlies,” as that night in August became known. But those events brought about a transformation of Glacier and the rest of America’s national parks.

Rangers cleaned up the trails and campgrounds. They also installed bear-proof trash cans so that grizzlies could not eat garbage. Garbage pits like those at Granite Park were closed. At campgrounds, picnic areas were set up far away from where people slept. If a grizzly was seen near a trail, the trail would be closed. Aggressive bears would be moved to remote parts of the park.

Those new rules led to lasting change. Today, Glacier is a cleaner and healthier place for its 300 grizzlies—and for humans.

This past year, more than 3 million people visited Glacier. Like John and Steve, they walked the winding trails and looked out across the jewel-like lakes. A few even spotted grizzly bears.

And hopefully, they felt lucky.

Nothing could change the tragic events of “the night of the grizzlies,” as that night in August became known. But those events brought about a transformation of Glacier and the rest of America’s national parks.

Rangers cleaned up the trails and campgrounds. They also installed bear-proof trash cans so that grizzlies could not eat garbage. Garbage pits like those at Granite Park were closed. At campgrounds, picnic areas were set up far away from where people slept. If a grizzly was seen near a trail, the trail would be closed. Aggressive bears would be moved to remote parts of the park.

Those new rules led to lasting change. Today, Glacier is a cleaner and healthier place for its 300 grizzlies—and for humans.

This past year, more than 3 million people visited Glacier. Like John and Steve, they walked the winding trails and looked out across the jewel-like lakes. A few even spotted grizzly bears.

And hopefully, they felt lucky.

This article was originally published in the October/November 2020 issue.

This article was originally published in the October/November 2020 issue.

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Download our Learning Journey Slideshow below for a ready-made digital slide deck that combines the article, video, and interactive questions.

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Can't-Miss Teaching Extras
Take a Virtual Field Trip

On the Glacier National Park website students can visit the park from home, looking at the park’s webcams, reading blogs by park rangers, and checking out digital versions of park exhibits.

Watch a Video

Before students read the article, have them watch this fascinating video about the work being done in Glacier to help understand grizzly bears.

Visit a Website

Invite students to visit this website, which gives information about a variety of endangered animals. Students could select an endangered animal, research it further, and write a brief report.

More About the Story

Skills

vocabulary, supporting details, key idea, text evidence, synthesizing, analyzing, critical thinking, narrative writing 

Complexity Factors

Purpose

The article describes a night in 1967 when two grizzly bears attacked humans—and the changes that resulted from those attacks.

Structure

The text weaves together narrative and informational passages. It also includes a map and a sidebar with details about grizzlies.

Language

The story includes some higher-level vocabulary, such as habitats and transformation, and a good deal of descriptive language.

Knowledge Demands 

The article mentions Native American peoples: the Cheyenne and the Hopi.

Step-by-Step Lesson Plan

1. Preparing to Read

Preview Text Features and Watch a Video

  • Invite students to browse through the article, looking at the pictures, captions, map, and sidebar. Ask: Based on what you saw, what do you think the article will be about? Then show the video “Author Visit With Lauren Tarshis” to prepare for reading.

Introduce Vocabulary

  • Show or assign the Vocabulary Slideshow to preview challenging words in the article. Reinforce learning before or after reading with the Vocabulary Skill Builder . Highlighted words: rugged, awe, sacred, habitats, fearsome, devouring, aggressively, lurking, transformation, remote

★ New for Remote Learners!

We now offer a self-guided slide deck that students can do independently, which bundles the article, video, and close reading questions together into a highly engaging learning journey. Find it in your Resources tab!

2. Reading and Discussing

  • Have students read the article in the magazine or digitally. They can also listen to the Author Read-Aloud.
  • Put students in groups, either in your classroom or in virtual breakout rooms. Ask them to read the article a second time and discuss or write their answers to the close-reading questions and critical-thinking questions (available in your Resources tab) .

Close-Reading Questions

  • In the first section of the article, who do you meet? What are they doing and when does the story take place? (supporting details) You meet two 14-year-old boys, Steve Ashlock and John Cook, who are enjoying a fishing trip in Montana’s Glacier National Park. The story takes place in July 1967.
  • Reread the section “Powerful and Sacred.” Describe the stories that were told about grizzlies in the early 1800s. What was the effect of the stories on settlers moving out West? (cause and effect) Some of the stories made grizzlies seem like monsters—mindless killers that loved to eat people. As a result, settlers moving out West killed grizzlies whenever possible. Tens of thousands of the bears were shot and poisoned. Nearly all the rest were chased from their habitats.
  • According to the section “Highly Intelligent,” what had scientists come to understand about grizzlies by the mid-1900s? (key idea) Scientists had learned that grizzlies were not mindless monsters. In fact, the bears are highly intelligent, with excellent memories. They are shy and usually avoid humans. Though they have fearsome powers, it is unusual for a grizzly to attack a human. Typically, a grizzly attacks only if taken by surprise or if it feels threatened.
  • In the section “Highly Intelligent,” why were Steve and John alarmed by the grizzly’s behavior? How did they escape? (text evidence) Steve and John were alarmed because the grizzly ate a loaf of their bread and tore apart their backpacks. It appeared hungry and not afraid of being near humans. The boys believed that “something about this bear seemed unusual—and dangerous.” To escape, they waited until the bear was distracted by a pan of trout they had prepared for dinner. Then they snuck to shore and ran.
  • According to the section “ ‘Grizzly Show,’ ” people left garbage all over Glacier National Park. They also fed bears their leftover food. How did these actions affect the bears’ behavior? (cause and effect) Feeding human food to a wild animal can permanently change the animal’s habits and relationship to the natural environment. In Glacier National Park, some grizzlies started to depend on garbage to survive. They became less shy toward people and moved into busier parts of the park. Humans had become a food source.
  • According to the sections “A Terrifying Hike” and “Shocking News,” why were Steve Ashlock and John Cook fortunate to escape from the grizzlies? (synthesizing) A couple of weeks after the boys escaped, two 19-year-old women were killed by two different grizzly bears. One of the bears was the skinny bear that Steve and John had run away from. Clearly, Steve and John could have been killed as well, and were lucky that they managed to escape.
  • According to the section “Shocking News,” why did two grizzly bears attack two 19-year-old women? (cause and effect) The large amounts of garbage caused the grizzlies to be fearless around humans. In fact, they may have depended on garbage for survival, as one of the bears had been seen at a garbage pit and the other was skinny and appeared to be starving. They likely attacked the two women out of desperation for food.
  • Today, Glacier is a cleaner and healthier place for both grizzly bears and humans. What changes were made to make the park better? (key idea) Rangers took a variety of measures to prevent grizzlies from attacking humans. They cleaned up the trails and campgrounds, installed bear-proof trash cans so that grizzlies could not eat garbage, and closed garbage pits. At campgrounds, picnic areas were set up far away from where people slept. If a grizzly was seen near a trail, the trail was closed. Aggressive bears were moved to remote parts of the park.

Critical-Thinking Questions

  • How does this story show an example of humans being careless and irresponsible? How does it show humans being thoughtful and responsible? (analyzing) The Granite Park Chalet created garbage pits for bears to eat at in order to entertain people; this was careless and wrong. It was irresponsible of rangers and park leaders to not take action, when they had known for years that trash was a problem. It was thoughtful and responsible to ensure that the grizzlies were treated better, and to take measures to prevent killings from taking place. For example, they cleaned up trails and campgrounds, installed bear-proof trash cans, and closed garbage pits.
  • Can you think of other examples of human behavior having a negative effect on wild animals? How can people change their behavior to better protect the world’s creatures? (critical thinking) Answers will vary. Students might suggest behaviors such as hunting and poaching wild animals, destroying their habitats to build houses and farms, and polluting air and water that animals depend on. Solutions may include protecting species that are becoming extinct, protecting animal habitats, and creating less pollution.

3. Skill Building and Writing

  • Distribute or assign the Cause and Effect Skill Builder (available in your Resources tab) , which will prepare students to respond to the writing prompt on page 9.
  • Alternatively, distribute or assign the Choice Board (available in your Resources tab) and let students choose to respond to one or more of the options on it.

Great Ideas for Remote Learning

  • Have students do a short research project on grizzly bears. Use breakout chat rooms to place students into groups of 3-4. Each group can focus on a different topic, such as diet, habitat, threats to survival, and conservation. Assign students roles within their group, such as recorder, presenter, timekeeper, and group leader. Lastly, “presenters” can present their group’s research to the class.
  • Have students partake in a virtual “silent conversation.” Create a shared Google Doc with memorable quotes from the article. (Some suggestions: the passage in “Grizzly Show” describing the garbage pit and the passage in “Shocking News” about park workers knowing garbage was a problem and not acting). Students should write a short reflection about each quote, typing their name next to their response. Afterward, have students select one of their reflections to share aloud with the class.

Differentiate and Customize
For Struggling Readers

Keeping track of the two different events in this article—Steve and John’s and the two 19-year-old women’s—could be difficult for struggling readers. Read the lower-Lexile version of the article together, and ask what the title “Night of the Grizzlies” refers to. Follow up by asking why Steve and John were lucky.

For Advanced Readers

Have students read “How to Save a Baby Orangutan” from our October/November 2019 issue. Then ask them to create a chart comparing the problems that grizzly bears in Glacier National Park faced with those of orangutans in Borneo. They should then add to the chart, comparing what humans have done to address those problems.

For ELL Students

ELL students may not have prior knowledge about grizzly bears. Before reading the article, show the Text Features Slideshow . (If teaching remotely, share your screen as you show it.) Focus on the “All About Grizzlies” chart on page 8. If appropriate, invite them to describe a special animal that is native to their countries of origin.

Text-to-Speech