Dutiful mothers, female polar bears usually give birth to twin cubs, which stay with her for more than two years until they can hunt and survive on their own.
Photograph by Norbert Rosing
Map
Polar Bear Range
Audio
Fast Facts
- Type:
- Mammal
- Diet:
- Carnivore
- Average life span in the wild:
- 25 to 30 years
- Size:
- Head and body, 7.25 to 8 ft (2.2 to 2.5 m); Tail, 3 to 5 in (7.5 to 12.5 cm)
- Weight:
- 900 to 1,600 lbs (410 to 720 kg)
- Size relative to a 6-ft (2-m) man:
-
Polar bears roam the Arctic ice sheets and swim in that region's coastal waters. They are very strong swimmers, and their large front paws, which they use to paddle, are slightly webbed. Some polar bears have been seen swimming hundreds of miles from land—though they probably cover most of that distance by floating on sheets of ice.
Polar bears live in one of the planet's coldest environments and depend on a thick coat of insulated fur, which covers a warming layer of fat. Fur even grows on the bottom of their paws, which protects against cold surfaces and provides a good grip on ice. The bear's stark white coat provides camouflage in surrounding snow and ice. But under their fur, polar bears have black skin—the better to soak in the sun's warming rays.
These powerful predators typically prey on seals. In search of this quarry they frequent areas of shifting, cracking ice where seals may surface to breathe air. They also stalk ice edges and breathing holes. If the opportunity presents itself, polar bears will also consume carcasses, such as those of dead whales. These Arctic giants are the masters of their environment and have no natural enemies.
Females den by digging into deep snow drifts, which provide protection and insulation from the Arctic elements. They give birth in winter, usually to twins. Young cubs live with their mothers for some 28 months to learn the survival skills of the far north. Females aggressively protect their young, but receive no help from their solitary male mates. In fact, male polar bears may even kill young of their species.
Polar bears are attractive and appealing, but they are powerful predators that do not typically fear humans, which can make them dangerous. Near human settlements, they often acquire a taste for garbage, bringing bears and humans into perilous proximity.
Other Arctic Animals
Mammal Features
-
Animal Conservation
Find out what National Geographic Society is doing to save animals all over the world, and learn what you can do to help.
-
Crittercam Helps Study Rare Species
The Hawaiian monk seal is one of the oldest species of seal on the planet. But their tenure in paradise is perilously close to its end; only about 1,100 seals remain in the wild.
-
Lions Quiz
The king of cats rules with a roar and a fierce bite. What else do you know about this top predator?
-
Cause an Uproar
Big cats are quickly disappearing. Now is the time to act. Cause an uproar to save big cats today.
Animals
-
Aardvark
-
Adélie Penguin
-
African Elephant
-
African Lion
-
African Wild Dog
-
Albatross
-
Alligator Snapping Turtle
-
Amazon Horned Frog
-
American Alligator
-
American Bison
-
American Bullfrog
-
American Crocodile
-
Ammonite
-
Andean Condor
-
Anglerfish
-
Ankylosaurus Magniventris
-
Ant
-
Arabian (Dromedary) Camel
-
Arctic Fox
-
Arctic Hare
-
Arctic Skua
-
Armadillo
-
Asian Elephant
-
Asian Lion
-
Atlantic Bluefin Tuna
-
Atlantic Puffin
-
Aye-Aye
-
Baboon
-
Bactrian Camel
-
Bald Eagle
-
Baltimore Oriole
-
Beaver
-
Beluga Whale
-
Bengal Tiger
-
Bird of Paradise
-
Black Bear
-
Black-Footed Ferret
-
Black Mamba
-
Black Rhinoceros
-
Blacktip Shark
-
Black Widow Spider
-
Bluebird
-
Blue Crab
-
Blue-Footed Booby
-
Blue Jay
-
Blue Marlin
-
Blue Whale
-
Boa Constrictor
-
Bobcat
-
Bottlenose Dolphin
-
Box Jellyfish
-
Brachychampsa Montana
-
Brown Bear
-
Bull Shark
-
Burmese Python
-
Butterflyfish
-
California Condor
-
California Sea Lion
-
Canada Goose
-
Cane Toad
-
Canvasback
-
Caribou
-
Carolina Wren
-
Cheetah
-
Chimpanzee
-
Chipmunk
-
Cicada
-
Clouded Leopard
-
Clown Anemonefish
-
Coelacanth
-
Common Earthworm
-
Common Loon
-
Common Octopus
-
Common Sandpiper
-
Common Vampire Bat
-
Common Wombat
-
Coral
-
Cottontail Rabbit
-
Coyote
-
Cretoxyrhina Mantelli
-
Cuban Screech Owl
-
Cubera Snapper
-
Deer Tick
-
Devil Frog
-
Dingo
-
Dog Snapper
-
Dolichorhynchops Osborni
-
Domestic Cat
-
Domestic Dog
-
Draco Lizard
-
Dugong
-
Eastern Coral Snake
-
Eastern Diamondback Rattlesnake
-
Eastern Gray Kangaroo
-
Egyptian Giant Solpugid (Camel Spider)
-
Electric Eel
-
Elephant Seal
-
Elk
-
Emperor Penguin
-
Fennec Fox
-
Firefly (Lightning Bug)
-
Flying Fish
-
Flying Snake
-
Fossa
-
Frilled Lizard
-
Fur Seal
-
Galápagos Tortoise
-
Gelada
-
Gentoo Penguin
-
Geographic Cone Snail
-
Giant Anteater
-
Giant Clam
-
Giant Pacific Octopus
-
Giant Panda
-
Giant River Otter
-
Giant Squid
-
Gibbon
-
Gila Monster
-
Giraffe
-
Golden Cowrie
-
Golden Eagle
-
Golden Jellyfish
-
Golden Lion Tamarin
-
Golden Poison Dart Frog
-
Gray Whale
-
Great Blue Heron
-
Great Egret
-
Greater Flamingo
-
Greater Rhea
-
Great Horned Owl
-
Great White Shark
-
Green Anaconda
-
Green Basilisk Lizard
-
Green-Eyed Tree Frog
-
Green Iguana
-
Green Sea Turtle
-
Grizzly Bear
-
Groundhog
-
Hammerhead Shark
-
Harbor Porpoise
-
Harp Seal
-
Hawaiian Monk Seal
-
Hawksbill Sea Turtle
-
Hedgehog
-
Henodus Chelyops
-
Hesperornis Regalis
-
Hippopotamus
-
Honeybee
-
Horned Toad (Short-Horned Lizard)
-
Hornet
-
Horse
-
Howler Monkey
-
Humpback Whale
-
Impala
-
Indian Rhinoceros
-
Ivory-Billed Woodpecker
-
Jackrabbit
-
Jaguar
-
Kemp's Ridley Sea Turtle
-
Killer Whale (Orca)
-
King Cobra
-
King Vulture
-
Kinkajou
-
Koala
-
Komodo Dragon
-
Krill
-
Ladybug
-
Laughing Kookaburra
-
Leafy and Weedy Sea Dragon
-
Leatherback Sea Turtle
-
Leopard
-
Leopard Seal
-
Leptoceratops Gracilis
-
Lesothosaurus Diagnosticus
-
Lionfish
-
Little Red Flying-Fox
-
Llama
-
Lobster
-
Locust
-
Loggerhead Sea Turtle
-
Lynx
-
Macaw
-
Madagascar Hissing Cockroach
-
Mallard Duck
-
Manatee
-
Mandrill
-
Marine Iguana
-
Matschie's Tree Kangaroo
-
Meerkat
-
Meller's Chameleon
-
Mexican Axolotl
-
Mola (Sunfish)
-
Mole Rat
-
Monarch Butterfly
-
Mongoose
-
Mononykus Olecranus
-
Moose
-
Mosquito
-
Mountain Goat
-
Mountain Gorilla
-
Mountain Lion
-
Mouse Lemur
-
Mudpuppy
-
Musk-Ox
-
Narwhal
-
Nile Crocodile
-
North American River Otter
-
Northern Leopard Frog
-
Nudibranch
-
Nurse Shark
-
Nutria
-
Ocelot
-
Olive Ridley Sea Turtle
-
Opossum
-
Orangutan
-
Oriental Fire-Bellied Toad
-
Osprey
-
Ostrich
-
Oyster
-
Ozark Big-Eared Bat
-
Pachycephalosaurus Wyomingensis
-
Parrot
-
Parrot Fish
-
Peacock
-
Pelican
-
Peregrine Falcon
-
Pileated Woodpecker
-
Platecarpus
-
Platypus
-
Poison Dart Frog
-
Polar Bear
-
Porcupine
-
Portuguese Man-of-War
-
Prairie Dog
-
Praying Mantis
-
Proboscis Monkey
-
Pronghorn
-
Protosphyraena
-
Protostega Gigas
-
Przewalski's Horse
-
Pufferfish
-
Queen Angelfish
-
Quetzal
-
Raccoon
-
Rainbow Trout
-
Raven
-
Red Crab
-
Red-Eyed Tree Frog
-
Red-Footed Booby
-
Red Fox
-
Red Kangaroo
-
Red Leaf Monkey
-
Red Panda
-
Red-Tailed Hawk
-
Red Uakari
-
Rhesus Monkey
-
Right Whale
-
Ringed Seal
-
Ring-Necked Pheasant
-
Ring-Tailed Lemur
-
Rockhopper Penguin
-
Rocky Mountain Bighorn Sheep
-
Ruby-Throated Hummingbird
-
Sailfish
-
Saltwater Crocodile
-
Sandhill Crane
-
Sand Tiger Shark
-
Scarab
-
Scorpion
-
Sea Anemone
-
Sea Cucumber
-
Seahorse
-
Sea Otter
-
Siberian Tiger
-
Sifaka
-
Skunk
-
Sloth Bear
-
Snow Goose
-
Snow Leopard
-
Snowshoe Hare
-
Snowy Owl
-
Sockeye Salmon
-
Spectacled Bear
-
Sperm Whale
-
Spider Monkey
-
Spotted Hyena
-
Spotted Salamander
-
Spring Peeper
-
Squirrel
-
Starfish (Sea Star)
-
Steller Sea Lion
-
Steller's Sea Eagle
-
Stick Insect
-
Stingray
-
Styxosaurus Snowii
-
Sumatran Rhinoceros
-
Sun Bear
-
Tapir
-
Tarantula
-
Tasmanian Devil
-
Thescelosaurus Neglectus
-
Thick-Billed Murre
-
Thomson's Gazelle
-
Three-Toed Sloth
-
Tiger Salamander
-
Tiger Shark
-
Toucan
-
Triceratops Horridus
-
Triggerfish
-
Troodon Formosus
-
Tundra Swan
-
Tusotheuthis Longa
-
Two-Toed Sloth
-
Tylosaurus Proriger
-
Tyrannosaurus Rex
-
Velociraptor Mongoliensis
-
Wallaby
-
Wallace's Flying Frog
-
Walrus
-
Warthog
-
Warty Newt
-
Wasp
-
Water Buffalo
-
Web-Footed Gecko
-
Weddell Seal
-
Western Lowland Gorilla
-
Whale Shark
-
White-Eared Kob
-
White Rhinoceros
-
White-Tailed Deer
-
Whooping Crane
-
Wildebeest
-
Wild Turkey
-
Wolf
-
Wolverine
-
Wood Stork
-
Xiphactinus Audax
-
Zebra
Advertisement
The Innovators Project
-
Alan Guth: Waiting for the Big Bang
Three decades ago, the innovative physicist had a eureka moment that explained the universe.
Special Ad Section
From the Magazine
-
Gannets Pictures
Champion divers but clumsy landers, doting parents but hostile neighbors—northern gannets abound in contradictions.
-
Estonia's Ural Owls
Photographer Sven Začek provides an intimate view of this large raptor.