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Polar Bears Polar Bears ( ( Ursus marltimus Ursus marltimus ) ) By : Sydney By : Sydney Fessenden Fessenden Grade 6 Grade 6

Sydney thomasen polar bears

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Page 1: Sydney thomasen polar bears

Polar BearsPolar Bears((Ursus marltimusUrsus marltimus))

By : SydneyBy : SydneyFessendenFessenden

Grade 6Grade 6

Page 2: Sydney thomasen polar bears

Scientific ClassificationScientific Classification

Kingdom Kingdom AnimaliaAnimalia

Phylum Phylum ChordataChordata

ClassClass MammaliaMammalia

FamilyFamily UrsidaeUrsidae

Genus Genus UrsusUrsus

Page 3: Sydney thomasen polar bears

AppearanceAppearance Largest land carnivoreLargest land carnivore Male Polars grow two or three times the Male Polars grow two or three times the

size of a female size of a female Male Polar bears weigh about 650 kg and Male Polar bears weigh about 650 kg and

are about 2.5 to 3 m longare about 2.5 to 3 m long Females weigh about 150 to 250kg and are Females weigh about 150 to 250kg and are

about 1.8 to 2.5 m long female polar bears about 1.8 to 2.5 m long female polar bears can weigh as much as 500kg when can weigh as much as 500kg when pregnantpregnant

Page 4: Sydney thomasen polar bears

Habitat Habitat Polar bears have been reported as Polar bears have been reported as

far north as north pole and as south far north as north pole and as south as Labrador Newfoundlandas Labrador Newfoundland

Polar Bears inhabit artic sea ice, Polar Bears inhabit artic sea ice, water islands and water islands and continental coastlines.continental coastlines.

Where the polar bears live

Page 5: Sydney thomasen polar bears

Life CycleLife Cycle

Live to 25, Females give birth to 1 or Live to 25, Females give birth to 1 or 2 young 2 young

Full grown at about 5 or 6 Full grown at about 5 or 6 Stay with their mother until two and Stay with their mother until two and

a half yearsa half years

Page 6: Sydney thomasen polar bears

DietDiet Polar bears feed on mainly bearded Polar bears feed on mainly bearded

seals, Depending on their location seals, Depending on their location they also feed on harp and hooded they also feed on harp and hooded seals and scavenger on carcasses of seals and scavenger on carcasses of beluga whales, narwhals and beluga whales, narwhals and bowhead whales bowhead whales

In spring berries and some plantsIn spring berries and some plants

Page 7: Sydney thomasen polar bears

PredatorsPredators Humans (hunting)Humans (hunting) Global WarmingGlobal Warming

Page 8: Sydney thomasen polar bears

Impact on the EnvironmentImpact on the Environment They are top of the food chain in their They are top of the food chain in their

region if polar bears don’t exist other region if polar bears don’t exist other populations will rise which would create populations will rise which would create imbalance imbalance

Especially if one species out Especially if one species out competes another with food competes another with food source and knocks that species source and knocks that species outout

Page 9: Sydney thomasen polar bears

How Humans impact Polar How Humans impact Polar BearsBears

Pollution Pollution Global Warming is melting their ice Global Warming is melting their ice

and making it harder to huntand making it harder to hunt Hunting polar bears for food and fur Hunting polar bears for food and fur

for moneyfor money

Page 10: Sydney thomasen polar bears

How can we help the Polar How can we help the Polar Bears Bears

Buy fur made from other productsBuy fur made from other products Not release green house gasses that Not release green house gasses that

will cause global warmingwill cause global warming

Page 11: Sydney thomasen polar bears

Fun FactsFun Facts Female polar bears would rather build their dens Female polar bears would rather build their dens

in "old snow" from previous years rather than in "old snow" from previous years rather than the freshly fallen snow. the freshly fallen snow.

Polar Bears tend to over heat than to get to Polar Bears tend to over heat than to get to coldcold

Polar bears are so strong that one blow from its Polar bears are so strong that one blow from its paw can kill an animalpaw can kill an animal

A polar bear's fur is not white!!  It is hollow.  The A polar bear's fur is not white!!  It is hollow.  The fur reflects light.  The hollow fur also traps the fur reflects light.  The hollow fur also traps the suns heat to help keep it warmsuns heat to help keep it warm

Page 12: Sydney thomasen polar bears

References References www.seaworld.comwww.ask.comwww.ask.comwww.yahoo.cawww.yahoo.ca

Page 13: Sydney thomasen polar bears