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POLAR BEARS, SEA OTTERS, AND MANATEES BY SAM WIERNUSZ

Polar Bears, Sea Otters, and Manatees

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Polar Bears, Sea Otters, and Manatees. By Sam Wiernusz. Polarbearus Samus. Polar Bears ( Ursus maritimus ). Polar bear habitat. Largest bears on earth, with boars weighing 700-1500lbs Sows are half that size Live in the Arctic Circle. Polar bear diet. - PowerPoint PPT Presentation

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Page 1: Polar Bears, Sea Otters, and Manatees

POLAR BEARS, SEA

OTTERS, A

ND MANATEES

B Y SA M W

I ER N U S Z

Page 2: Polar Bears, Sea Otters, and Manatees

POLARBEARUS SAMUS

Page 5: Polar Bears, Sea Otters, and Manatees

POLAR BEAR DIET Polar bears are carnivorous. Their main diet is seals,

which they hunt from the edge of the sea ice, mainly near the seals breathing holes which they locate by scent. When the ice melts and it is harder for them to find food they live off of stored fat reserves.

(Nature is not always pretty!)

Page 7: Polar Bears, Sea Otters, and Manatees

POLAR BEARS MATING HABITS Polar bears are polygynous. They meet mates at a

good feeding ground in April and May, where males will fight for mating rights and get a mate. The pair will mate for 1 week. They fertilized eggs are suspended and the female eats up to half her body weight to prepare for giving birth.

*Polar bears do not hibernate, they are active all year, except pregnant females who will go into a dormant state while pregnant.

Page 9: Polar Bears, Sea Otters, and Manatees

POLAR BEAR FUN FACTS• Polar bears live up to 25 years• They can swim! On average their swims are about 96

miles, however they can swim up to 220 miles!• There are only about 20,000-25,000 left in the wild• Status-threatened

Page 11: Polar Bears, Sea Otters, and Manatees

SEAOTTEROUS SAMUS

Page 18: Polar Bears, Sea Otters, and Manatees

SEA OTTER FACTS• Only known mammal besides primates, birds and a

few other species to use tools.• Heaviest members of the weasel family• Do not have blubber, they use dense fur to keep warm• About 100,000 left in the wild• Second smallest marine mammal• Meticulously clean themselves• Status-threatened

Page 19: Polar Bears, Sea Otters, and Manatees

MANATEEUS SAMUS

Page 21: Polar Bears, Sea Otters, and Manatees

MANATEES RANGEThere are three species of manatee, distinguished by where they live. They are the Amazonian manatee (Trichechus inunguis), the West Indian manatee (Trichechus manatus), and the West African manatee (Trichechus senegalensis).

Page 25: Polar Bears, Sea Otters, and Manatees

MANATEE FACTS• Can live up to 40 years in the wild• Status-endangered• Usually not very social, but can be in groups of 6 or

less• Due to their curious nature, boat propellers kill many

of them• Smart-can be comparable to a dolphin or porpoise• Cannot live in waters under 60 degrees Fahrenheit