This report is on the Grizzly bear that I wrote for my friend Lesley.

1. Customer: Bronx zoo Staff
Animal: Grizzly bear
Report by: Felicia Ferentinos
Grizzly Bear Report
The grizzly bear is an omnivore which means they will eat
plants and other animals. Grizzly bears will eat anything that
can fell up their bodies. Usually grizzly bears will eat small stuff
like they will eat berries, grasses, roots, bulbs, tubers and big
insects. The Grizzly bear will need to eat at lot of food during
the summer and the fall. A grizzly bear needs to eat about 80 to
90 pounds (36 to 40kg) of food every day so that they can be
prepared for the winter and for hibernation. Flowers and plants
make up 75 percent of the bears diet. Bears need to get fat so
that it can help the bear to get through the winter. Bears often
fish for salmon and sometimes trout. A bear can eat up to
twelve or more bigger fish in a afternoon. Sometimes bears will
eat food that has been washed up on the beach. The wasted
up food that bears eat are seaweed, crabs and maybe dead
fish. When the bears are away from the water they usually hunt
large mammals like moose, deer, elk and caribou these are the
largest mammals that the grizzly bear that get hunt down for
food. Bears can also eat carrion. A Grizzly bear will eat a whole
variety of food like they will eat fruit, berries, bulbs, tubers and
nuts they can also eat insects and grubs. They can sometimes
eat honey, fish, rodents and lizards. They can also eat nuts to.
The plants that bears eat are roots, sprouts and fungi. Bears
usually eat small mammals and insects it depends what time of
the year and the location that it is in. The grizzly bear can also
eat a mountain goat sometimes they will even kill a black bear.
Grizzly bears favorite food is salmon and they can be seen with
other grizzlies around in the same area where the salmon is
spawn. The grizzly bear does not just eat the same fish they will
also eat trout and bass to. The grizzly bear can grow much
bigger then there herbivorous cousins are. Some people think
that bears only eat meat but that is not true because they eat

2. plants and other animals this means they are an omnivore. The
bears diet depends on what type of food does it want.
Sometimes they will graze on grass, fruit, berries and nuts.
Sometimes they can dig up plant roots that they usually find
with bees and honey in a beehive. Grizzly bears are amazing
hunters when they are searching for insects they can turn over
rocks and logs to get them. The small mammals that they eat
are mice and squirrels. The grizzlies that live near water they
often eat fish. Bears can also take down a bison. They can
even eat on dead animals to. They usually fresh on decaying
flesh of carrion. When the grizzly bear thinks of food they always
think of their favorite fish salmon. The bears that live in Alaska
and Russia they will flock to the rivers that is being used by the
salmon swimming they do this to push the salmon to the
surface of the water. They do this in every summer and in the
fall this is the time when they get ready for hibernation. They
fell up their bellies to prepare them for the long deep sleep.
They will start to get ready for hibernation during the fall. It has
to stock up to 4 to 7 months when they live off the stored body
fat. A grizzly bear will eat 90 pounds (40 kilograms) of food
every day. The grizzly’s diet chances when the seasons chance.
Like in the spring a grizzly can eat about 25 to 35 pounds (11 to
1b kilograms) of food every day during the spring. When it is
summer or the fall comes this is when they start to get prepared
for the winter. A grizzly may eat about 100 pounds (45
kilograms) of food every day. They may gain up to 400 pounds
(181kilograms). Sometimes a grizzly will stand close to a river
bank then they will flip the salmon out of the water then the fish
will go on the dry land by using their paws. Sometimes the
grizzly will wait and sit really quietly on a rock that is near deep
water. When they sit on a rock then they will wait for the salmon
to swim past them. Then the bear will dive in then they will pin
the fish to the river bed. These are some of the tracks that bears
use to catch a fish. The ranges that the grizzly bear lives on are
North America, Europe and in Asia. The brown bears that live
on North America they live on Alaska, Idaho, Montana,
Washington and in Wyoming. There are about 40,000 bears that

3. are living on Alaska. Grizzly bears also live in Canada. The
locations that the grizzly bear lives on are Alberta, British
Columbia. The bears that live in the North West places they live
on Yukon. They have also been seen on Chihuahua which is
located in Mexico. The live on the north west of North America.
They can also live on the north of Asia and in Europe. They can
be found on the Atlas Mountains of northwest Africa and they
can also live in the Middle East to. The brown bears habitats are
in temperate and coniferous forest. They can also be found on
the open fields. They can live on the mountain highlands and in
tundra. There are 1,000 bears that live on Montana. There are
300 bears that live in Wyoming and there are less bears that live
in Washington and in Idaho there are about 50 bears that live
on these places. There are about 25,000 brown bears that live
in Canada, The habitats that bears live on are mountain areas
and on forests. They can also be found near a river valley and
on meadows. They also live on Prairies to. There are also 600
and 800 bears that are living in Montana, Washington,
Wyoming and on Idaho. There are also 40,000 and 50,000 bears
that live up in the mountain, in forests and in Prairies that are
located on Alaska and in Canada. Brown bears also live in the
Northern Hemisphere. They can also be found on some islands
of Kodiak. The big brown bears live in cold mountain forests
and on river valleys. They can also be found on California, Ohio
and on the Great Plains. But grizzly bears do not live in
California anymore. They do live in the Western of the United
States and on Southern Alaska. Their habitats are also Diverse
and on grasslands. They can also be found on West Canada.
They can even live on tundra. There are about 800 and 900
grizzlies that are living on Rocky Mountains and they also live in
Colorado. A brown bear can grow about 9 feet (2.7m) long 425
pounds (192.8kg). The average weight of a brown bear is 700
pounds (318 kilograms); the average weight of a female is 350
pounds (159 kilograms). Grizzly bears can grow about 7 feet
(2.1m) long and they can weight about 1,500 pounds (680kg).
Lots of Grizzly bears can weigh about 350 through 700 pounds
(158 to 317 kg). Some Grizzles can grow about 7 to 10 feet (2.1

4. to 3.1m) this is the size when they are standing up. A male
grizzly bear are 40 percent bigger then the females. A length of
a grizzly bear is 6 to 8 feet (1.8 to 2.4 meters) long. Their height is
3 to 5 feet (.9 to 1.5 meters) to the shoulders. They can
sometimes grow about 6 to 10 feet (1.8 to 3 meters). This is how
big they are when they are standing up. A male grizzly bear will
weigh about 350 and 700 pounds (159 and 318 kilograms). The
weight of the female is 250 and 350 pounds (113 to 159
kilograms). The height of a grizzly bear is 3 to 3 ½ feet at the
shoulders. Their length is 6 to 7 feet. An adult male grizzly can
weight about 300 to 850lbs and the weight of the females is 200
and 450lbs. The body length of a grizzly bear is 6 to 9.8 feet (1.8
to 3 meters). The height of their shoulders is 3 to 4 feet (0.9 to 1.2
meters) to the shoulder. A male grizzly bear can also weight
about 330 to 1.500 pounds. (150 to 680 kilograms). The female
can weight about 215 to 660 pounds (97 to 300 kilograms). A
brown bears normal size is 5 to 8ft (1.5 to 2.5m). Their weight is
800lbs (363kg). When the male brown bear is standing on its
high legs its height can be as tall as 3 meters tall. The brown
bear can also grow about 6-7 feet long. 3-3 ½ feet long high to
the shoulders. 300- 1,720 pounds. The average height of an
adult grizzly bear is 3 to 5 feet (90 to 150 centimeters) wide
when the bear is on all four legs. When they are standing they
can measure to 6 to 10 feet (180 to 300 centimeters tall. An
adult grizzly bear can weigh 600 pounds (270 kilograms). Some
grizzly bears can weight about 1,400 pounds when the bear is
standing on its high legs it can reach about seven feet (two
meters) long. The brown bears front claws can grow for 4, 75
inches (12 cm) that this is as big as rear claws. A grizzly bear
can live for 25 years in the wild. When it is in a zoo it can live
about 40 years. The grizzly bear can live for 20 to 25 years. The
grizzly bear can live for 16 to 18 years as well. The average life
span for a grizzly bear is 25 years. When the summer is over then
the grizzly bears become very fat. They will also drink a lot of
water. When it is the time for hibernation this is when the bear
moves into a cave or a hollow log so that they can move in.
this is called a den. The bear must always have a den during

5. the winter because so that they can be safe from the cold
weather. When winter comes then the bear goes into a long
deep sleep. They will continue to sleep until spring comes then
the bear will start to wake up. When spring comes they will start
to yawn, stretch and limp out of their dens. When they wake up
they will weigh a half as mush as they were in the fall. Females
will start to give birth when spring is here. The bears will be
hungry when they wake up and they will need a lot of water.
So this means that they will go back to hunting for food. The
grizzly bear’s will start to lose weigh for a few months until
summer comes back and food is once again plentiful. The
brown bears can even weigh right before hibernation then
they do when they are done with their winter sleep. Grizzly
bears can hibernate when the weather is cold. During this time
they will start to look for a den to live in. Some bears can usually
choose their own den. Some other bears usually dig a den that
can be under trees or in hillsides. That is in the cold climates.
Grizzly bears will start to hibernate in October to April or
sometimes in May. When the bear is in hibernation then it will
not eat or drink during this time. During hibernation time the
grizzly bear will may build up 6 to 10 inches (5 to 25 centimeters)
of fat that is under their hides. In hibernation the grizzly bears
body temperature will start to drop down to 10 degrees
Fahrenheit (5 degrees Celsius). The bears heart rate can also
drop down to 40 beats a minute to 8 beats in a minute. The
brown bear has a very big hump of muscle that is located on
the top of their shoulders and on the claws that happen to be
very big. Their long claws are helpful for digging. These claws
make the bears very powerful diggers. They usually dig up large
cozy dens to make good homes when winter comes. The bears
will begin in this sleep for 4 to 6 months in a year. That can take
the bear’s one-third and one-half of their lifetime. This long
sleep is called hibernation but this is a real different hibernation
for the brown bears because their body temperature does not
drop drastically. Any way their heart rate will start to slow down
to 70 beats in per minute in only 10 beats in per minute. The
bear’s metabolism will start to go down very slow so now during

6. this time they can not urinate or defecate in all winter long.
Hibernation will allow the bears to stay alive for a very long time
when there is less or even no food that are available for them.
The bears that are usually found on warmer areas they spend
less of their time curling inside their dens than the species That
live in very long winter areas. Before grizzly bears go into a false
hibernation they would have to gain hundred kilograms of fat.
Grizzly bears will start to hibernate when winter comes. They
usually hibernate for 5 or 8 months. They can dig dens that are
on north -facing slopes tonsure the good snow cover. A brown
bear can live about 47 years in a zoo. Brown bears can also eat
about 35 pounds of food in one day. Brown bears can store
their carrion that they sometimes find and they can cover it
with grass or moss. Moss is a kind of chemical that can kill a
fungi and bacteria and will act as preservative for the meat
that the bears sometimes eat. The male grizzly bear is called a
boar and the females are called sows. Bears are very small
animals they can learn things really fast. They are very curious
and they have very good memory. Some people think that it is
a myth but it is not because people say that grizzly bears do
not have good senses of sight because they have small eyes.
But bears really do have very good eyesight because they can
tell the difference between colors of objects. Their eyes can
really help them when it gets dark out. They can see moving
objects and they can see things that can be seen far away.
They can stand on their high legs to see things that are farther
away. Bears can both see and hear very well. Bears can stand
on their high legs they do not do this as a threat they do this
because they are curious and they are trying to a get a good
view of their surroundings. The most important sense for a bear
is their sense of smell. Their smell can allow them to look for a
mate, to avoid humans and to find their cubs. They can also
use their sense of smell to gather food. Experiments have
proven that bears can smell over three miles away when they
are looking for food. Bears are also known to detect a human
sent that was 14 hours after a person that has been passed on
the trail. When the other animals are still in hibernation. Grizzly

7. bears usually wake up easily when they are disturbed. They are
very light sleepers. Grizzly bears can run really fast they can run
about 35 miles per hour. A grizzly bear can challenge a pack of
hungry wolves for the animal that the wolves just killed. It is like
playing a game of cat and mouse. Wolves can attempt a belt
and they will thwart a much bigger predator. Grizzly bears do
not like when their ears get wet. Grizzly bears are solitary
animals which mean that they live alone and they do not live in
a family or in a group. Grizzlies always try to stay away from
each other. Sometimes when they see another bear they will
growl and try to scar the other bear away. Grizzly bears will
sometimes try to avoid humans. Their hearing, eyesight and
their sense of smell are so amazing that they use their powerful
and strong senses to stay away from humans. Humans and
grizzly bears sometimes do meet by accident. A hungry bear
can sometimes enter into a camp site to look for food. They
can open boxes; they can also knock down a tent over. They
may sometimes crush cans and packages when they are
looking for food. Campers should never let a grizzly bear find
their food because the grizzly bear will come back to the camp
site to look for more food. Then grizzlies maybe killed from the
food that they ate. When a female bear attacks a camper it
might mean think that it could be a threat for her cubs. Even
campers that work in parks and in reserves are easily killed or
hunt by grizzly bear. Scientists do believe that grizzly bears can
see much better then humans do. Scientists also believe that
they can see forms, movements and colors. Grizzly bears can
see really will when it is night time. The sense that bears have
are their smell is really good. They can smell carrion in 1 mile (1.6
kilometers) away. Their hearing is also amazing because they
can hear soft sounds like a twig snapping that can be heard
over 200 yards (183 meters) away. This can help them to know if
prey is somewhere nearby. Scientists believe that bears can
hear sounds that people can't hear these sounds can be high-
pitched sounds. Humans can't hear these sounds. A female
grizzly bear will not be ready to mate until she is 5 years old.
Grizzly bears will start to mate in June or in July. The female will

8. start to give birth in the early next year then the mother will start
to make a den. A female grizzly will give birth to only one or two
little cubs. Some females can also have 3 or even 4 cubs at a
time. A grizzly bear will weigh about 10 ounces (280 grams) a
pound and they can weigh about (450) a pound. When it is the
time for the cubs to come out of their mother's womb. The
moment that they are out of their mother then the cub’s eyes
will be closed and they will be helpless the moment that they
are born. They kind a look like that they are naked. But they are
not naked they are just wearing a coat to keep them warm.
This coat has very fine hair. The cubs will not be ready to leave
their den until they have thick coats of fur and their eyes have
to open. The mother's milk is really rich and fat so that the cubs
can grow faster. The cubs will only stay with their mother for 2 or
3 years. A female grizzly usually has their cubs in every 3 years
they will not give birth in 3 years when they are in places that
have a climate that was especially harsh. Grizzly cubs are so full
of energy. They love to play and have fun. The stuff that they
enjoy doing is sliding down snow banks and rough-housing with
their bothers and sisters. The cubs can also push and roll
around. They can also fight with each other by biting the other
cubs' neck. These things can teach them how to fight and to
teach them their hunting skills for them to help with their survive
when they turn into adults. If a female only has one cub then
the mother will play with her cub more often. A female will be
pregnant for 8 months. Cubs are usually born during January
and in February when the mother is resting in her den. Grizzly
bear cubs can be very small and they can weigh about 8.5
and 11.5 ounces (240 to 330 kg). They can be blind, bald and
they can be helpless the moment that they are born. When
they reach 5 weeks old they will start to learn how to walk. The
grizzlies’ gestation period is 6 to 8 months this also includes a 5
month delayed implantation period. A mother grizzly bear can
have 1 or 4 cubs but they usually have 2 cubs. A newborn
grizzly cub is 16 to 25 ounces (424 to 709 grams). The weigh of a
newborn grizzly bear is 1 pound (0.45kg). They are like the same
size of a rat. The grizzly bear can mate in the early may or in

9. between mid-July. The gestation period is also 180 to 270 days
this also includes delayed implantation. A newborn cub can be
produced through a loud continuous humming this sound can
happen when the cub is nursing. This can help the stimulate
from their mother's milk production. This sound can be so loud
that it can be heard outside of the den. When spring comes
then the cubs will be ready to leave the den and explore the
outside world. The first spring can be very hard for a grizzly bear
cub because they could get killed by eagles, bobcats and
mountain lions. Bear cubs can weigh about 55 to 65 pounds (25
to 30 kg). Grizzly cubs will spend a lot of time with their mother
only for two winters in the den with her cubs. Cubs have lots of
predators that can kill a cub like a pack of wolves, a adult
male bear and even their own father can even kill them. They
are also in danger when they are separated from their mother.
The females are totally protective when it comes to their cubs.
The mother does not wake up when her blind and hairless cub
are born in a mid-winter. A size of a newborn cub is like a size of
a chipmunk. They can be strong enough to crawl into a
position that it wants to settle so that it can nurse. Grizzly bears
share their land with elk, moose, cougars, grey wolves, black
bears, coyotes and the Dall’s sheep. Female grizzly bears will
usually give birth during hibernation when it is January or in
February. The newborn can usually weigh a pound. They will
remain in the den until spring comes. When they reach 20
pounds that is how long that they can remain in the den. They
will stay with their mother in less then two years or even more.
Grizzly bears usually live by themselves unless they are mating
which can take place in June or in July. By the time January or
March then females will start to give birth as many as four cubs.
The mother will teach them how to hunt and how to take care
of themselves. The mother’s, main job is to protect her cubs
from predators like wolves and cougars. Mothers can be
extremely wary with other animal’s Grizzly bear mothers will
keep her cubs in a quiet place until the cubs are old enough to
take care of themselves. Grizzly bear cubs can usually generally
venture away from their mother so that they can start their lives

10. on their own. The mother grizzly bear can be extremely
protective with their offspring she will attack any animal that
she thinks that it can be a threat to her cubs. When the mother
is sleeping then the cubs will nestle up against her so that they
can stay warm and to get milk. When spring comes then the
cubs will be able to follow their mother outside of their den.
When a female wakes up from hibernation it often means that
she had found her new cubs that were born when she was
sleeping. Most often grizzlies have cubs that can be twins. In
three months the cubs can be extremely helpless when they
are born. They will survive the first years of their lives nursing
inside the den. The cubs will be ready to leave the den when
spring comes. The cubs will stay with their mother for seven
months. They will not stop nursing until fall comes. Some cubs
can nurse through the next winter. They will learn how to survive
on their own when the first year of spring and summer comes.
When they reach this part of their life’s this is when they are
doing their school time. The mother will teach her young her
territory and how to hunt. They will also learn what type of
animals to be scared of and the animals that they should eat.
They will learn more then how to hunt. The cubs will spend a lot
of time running, playing and to learn how to climb a tree. The
cubs will stay with their mother until they reach 3 years old.
When that time comes then the cubs will start to survive on their
own. Some cubs will stay with their mother for two years before
they are separate it from each other. When they are not living
with their mother any more then the cubs will start to find their
own territory and they will be able to start their life as adults.
Grizzly bears will start to mate when they are 7 years old. The
female grizzly bear will be pregnant for 180 to 266 days. Brown
bears were once lived in the northern Hemisphere because
people have killed them to make meat and for medicinal uses
and without fear. Their habitats are beginning to shrink
considerably. Some people believe that the bear’s organs can
be a cure for sicknesses. People are also saling the bear’s
gallbladder. They are being high prized in the markets that are
in Asia and they can also fetch high priced. The government in

11. Alaska used to kill the brown bear for ranchers. The government
in Alaska will kill the brown bear because they were killing
livestock. The species of the brown bear is not currently
endangered but they are being threatened but if the human
population keeps on growing then their will be no space for the
wild grizzly bears. Grizzly bears are very powerful animals no
animal will never get the chance to take down a grizzly bear.
Some predators might kill a brown bear cub like wolves will kill a
cub. But the grizzlies’ worst enemy is humans because they are
destroying their homes this is called loss of habitats. In the year
of 1800’s settlers that moved in the west that was in big
numbers. Lots of people have killed the grizzly bear because so
that they can protect the of 1800’s settlers that moved in the
west that was in big numbers. People are cutting their homes so
that they can make more room for towns and there is farm
land where the gizzly bear’s live in. This is causing the bear to
loss its habitat and it is really hard for the grizzly bear to look for
food. Lots of people have killed the grizzly bear because so
that they cab protect their livestock. Sometimes people had
mistaken the grizzly bear for a black bear. People have killed
them because people have feared them. Some people kill the
grizzly bear for sport this means for fun. People called the brown
bear a grizzly bear because of its tips of hair but must of them
have grayish or grizzled hair that is why people call the brown
bear a grizzly bear. Today it is against the law for anyone to kill
a grizzly bear but it is not illegal to kill a black bear. Scientist are
beginning to worry about the number of the grizzly bears in the
wild. Right now Grizzly bears are starting to breed vey slowly
now. A female may have to give birth to only three or four
years. Predators are killing 40 percent of grizzly bear cubs.
Grizzly bears are dying out fast right before they can replace
themselves but there are people around the world that are
working on protecting the grizzly bear. Seven national
organizations are teaching people about grizzly bears. These
people tell other people about the dangers that the grizzly
bear faces. These people will also help people how to avoid
bear attacks with these efforts these bears sure to continue on

12. their survive in the world. People have been challenged to find
good space with grizzly bears. People also help by visiting
Alaska by seeing a brown bear the in wild. That is what I know
about grizzly bears.