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1、www.readinga-BEARSBearsA Reading AZ Level S Leveled BookWord Count:1,171Visit www.readinga- for thousands of books and materials.Written by Kira FreedLEVELED BOOK SWritten by Kira FreedBEARSBearsLevel S Leveled Book Learning AZWritten by Kira FreedMaps by Craig FrederickIllustrated by Paula Schricke
2、rAll rights reserved.www.readinga-Photo Credits:Front cover,back cover,title page,pages 3,4,5,7,8,12(top),14,15:ArtToday;page 9:Leung Cho Pan/123RF;page 10:Mirceax/D;page 11:NaturePL/Superstock;page 12(bottom):Eric Baccega/Minden Pictures;page 13:J&C Sohns/Tier und Naturfotografie/SuperstockFront co
3、ver:Grizzly bearTitle page:Asiatic black bearBack cover:Polar bearwww.readinga-CorrelationLEVEL SO3434Fountas&PinnellReading RecoveryDRA34Table of ContentsWhat Is a Bear?.4Growing Up.5Kinds of Bears .6Bear Survival .15Glossary .16Index .16What Is a Bear?Bears are intelligent,curious,powerful animals
4、 that have always fascinated people.They have thick fur,short legs,small ears,stubby tails,long claws,and jaws that can crush bone.Bears have a keen sense of smell and can even smell and find food packed inside plastic bags.The smallest bear is the sun bear,which weighs 36 to 63 kilograms(80140 lbs)
5、.The largest bear is the polar bearmale polar bears can weigh as much as 680 kilograms(1,500 lbs).Many bears are known for hibernating,or sleeping,often for months at a time.Bears that hibernate do so to survive the cold winter when food is scarce.They consume large quantities of food during the war
6、mer months to store enough fat to last without food during the winter.Even though bears are famous for hibernating,many bears do not hibernate.Polar bears and giant pandas cannot obtain enough food during the warmer months to fatten up and go without food in the winter.Sun bears and sloth bears,whic
7、h live where food is plentiful year-round,also do not hibernate.Do You Know?The koala,often called a koala bear,is not a bear at all,even though it may look like one.It is a marsupial,or pouched mammal.Marsupials are especially common in Australia and also include the kangaroo,wombat,and Tasmanian d
8、evil.The only marsupial in the Americas is the opossum.Bears Level S56Giant PandaAmerican Black BearBrown Bear(Grizzly)Asiatic Black BearSpectacled BearSloth BearSun BearPolar BearGrowing UpMost adult bears are solitary,preferring to roam on their own.The exceptions are during the mating season and
9、when mothers care for their cubs.Bears usually have one to three cubs at a time.Bear cubs are very small,blind,and helpless at birth.They stay in a den with their mother for several months following their birth.Male bears do not help raise cubs,and in fact sometimes kill and eat them.The mother bear
10、 must fiercely protect her cubs while they are young and vulnerable.Cubs stay close to their mother for up to three years.During that time,their biggest task is to learn how to find food.Then they are on their own.Kinds of BearsThe following pages introduce the eight kinds of bears.Their comparative
11、 sizes are shown in the illustration below.Bear mothers are extremely attentive and caring.2.6 m(8.5 ft)318 kg(700 lbs)2.1 m(7 ft)250 kg(550 lbs)1.8 m(6 ft)113 kg(250 lbs)1.5 m(5 ft)113 kg(250 lbs)1.5 m(5 ft)113 kg(250 lbs)1.5 m(5 ft)113 kg(250 lbs)1.5 m(5 ft)113 kg(250 lbs)0.9 m(3 ft)36 kg(80 lbs)L
12、ENGTHAND WEIGHTBears Level S78Polar BearsThe polar bear is the largest bear and the largest land-dwelling carnivore on Earth.It is easily identified by its white or yellow-white fur that camouflages it in snowy surroundings.Polar bears are exceptional swimmers,aided by partially webbed front paws.A
13、thick layer of fat keeps them warm,even in frigid water.Polar bears live near the North Pole.They are powerful hunters,eating mostly seals and walruses.Because food can be scarce,they may not eat for four or five days at a time.Brown BearsNot all brown bears are brownthey are divided into ten subgro
14、ups based on coloring,which ranges from light tan to reddish brown to very dark brown.One famous subgroup is the grizzly bear.Its name comes from its gray-tipped fur,which looks frosty,or grizzled.The largest brown bear,the Kodiak bear,lives in Alaska.Brown bears have the largest range of any kind o
15、f bear.They live in western North America,parts of Europe,and much of northern Asia.Brown bears vary in size depending on where they live and what they eat.Fish,especially salmon,is a staple in the diet of many brown bears.The diet of a grizzly bear is among the most varied of any living animal.Griz
16、zlies eat meat,fish,insects,eggs,berries,roots,leaves,and grass.Brown bears love salmon.Do You Know?Polar bears have black skin under their fur.The black skin absorbs the suns energy and helps keep the bears warm.Polar bears live much of their lives on sea ice.CanadaAlaskaAsiaNorthPoleGreenlandAsiaN
17、orthAmericaEuropeEuropeNorthAmericaNBears Level S910Giant PandasAs a symbol of conservation,the giant panda is one of the most well-known animals in the world.It is easy to recognize because of its thick black-and-white fur and distinctive eye patches.Giant pandas live in the forest-covered mountain
18、s of China.They feed almost exclusively on bamboo and are completely dependent on the health of bamboo forests in order to stay alive.Giant pandas are extremely rare,with only about 1,000 left in the wild.American Black BearsThe American black bearoften black but sometimes lighterhas a light-colored
19、 muzzle.Scientists recognize separate subgroups of American black bears based on coloring.These include the cinnamon bear(reddish brown),the Kermode bear(white),and the blue,silver,or glacier bear(bluish black or dark gray).American black bears inhabit much of the North American continent,from Alask
20、a and Canada to northern Mexico.Black bears are true omnivores,eating a wide variety of plants as well as honey,fish,insects,and dead animals.They are very good climbers.American black bears are curious and intelligent.CanadaUnitedStatesCanadaAlaskaDo You Know?The giant panda has an extra“thumb”on e
21、ach hand.It is not really a thumb,but instead a special wrist bone,covered with a pad,that helps the giant panda grasp bamboo stems.No one is quite sure how pandas got their black-and-white fur.ChinaIndiaNNBears Level S1112Asiatic Black BearsThe Asiatic black bear,sometimes called the moon bear,is b
22、lack except for a light-colored muzzle and a light V-shaped patch of fur on its chest.Another unique feature is its unusually large ears.Asiatic black bears live in mountainous regions of many Asian countries.They often anger farmers by eating crops and killing sheep,goats,and cattle.These bears hav
23、e a diverse diet that also includes fruit,insects,and small animals.Spectacled BearsSpectacled bears have brown or black shaggy coats and light markings on their faces that sometimes look like eyeglasses,or spectacles.They are the only native bear in South America,living in forested mountains,grassl
24、ands,and coastal deserts.Like most bears,they are omnivores and will eat almost anything,including dead meat.They are particularly fond of fruit,sugarcane,and corn.Spectacled bears often climb cacti to eat the fruit at the top.The name moon bear comes from the patch of light fur,shaped like a cresce
25、nt moon,on the bears chest.ChinaIndiaDo You Know?Each spectacled bear has a unique pattern of eye markings on its face.South AmericaSpectacled bears have very good eyesightalmost as if their“spectacles”were real!NNBears Level S1314Sloth BearsThe sloth bear is a type of small bear with a long,shaggy
26、coat and a lighter-colored face.It moves slowly and often hangs from tree branches,similarly to another mammal called a tree sloth.Sloth bears live in the forests and grasslands of India and the neighboring island of Sri Lanka.Their favorite food is termites.A sloth bear has a long snout that it use
27、s to suck out these insects from their nests.These bears also eat fruit,berries,and honey.When feeding,they make a loud sucking noise that can be heard from far away.Sun BearsThe sun bear is the smallest member of the bear family.Mostly black,it gets its name from the light-colored patch of fur on i
28、ts chest that is shaped like a rising sun.Sun bears live in lowland tropical rainforests in Southeast Asia.They feed on both plants and animals.They have unusually long tongues to help them remove insects from hard-to-reach places.Sun bears are sometimes called honey bears because of their fondness
29、for honey.Sun bears like honey so much that they will brave angry bees to get itand eat the bees,too!Sun bears are excellent climbers.IndiaChinaSloth bears can close their nostrils to better suck up termites.Sri LankaIndiaChinaNNBears Level S1516Bear SurvivalStories about bears attacking people are
30、frightening,but bears are in greater danger from people than people are from bears.Because of human activity,bear populations are shrinking.Over half of all bear habitats worldwide have been destroyed by humans for farming,mining,and forestry.Five kinds of bears are endangered,and the other three ar
31、e decreasing in numbers.Another threat to bears is hunters,who kill bears for meat,sport,or the use of body parts for medicinal purposes.Other people hunt bears because they consider them to be pests that threaten crops or livestock.Conservationists and wildlife biologists are working to save bears
32、from extinction.Many people are trying to protect bear habitats and stop hunting so that bears can continue to survive in the wild.Glossarycarnivore(n.)animal that eats meat(p.7)comparative(adj.)using or showing a comparison(p.6)diverse(adj.)made up of many things(p.11)exclusively(adv.)completely;en
33、tirely(p.9)hibernating(v.)sleeping deeply,especially for an entire winter(p.4)muzzle(n.)the long part of an animals head that includes its mouth and nose(p.10)omnivores(n.)animals that eat both plants and animals(p.10)solitary(adj.)alone;without companions (p.5)IndexScientists put a tag on this brown bears ear to track it and learn about its behavior.American black bear,6,10Asiatic black bear,6,11brown bear,6,8,15giant panda,4,6,9polar bear,4,6,7sloth bear,4,6,13spectacled bear,6,12sun bear,4,6,14Bears Level S