• An adult male polar bear (Ursus maritimus) lies on sea ice while "still-hunting" -- waiting for an opportunity to grab a seal as it surfaces to breathe.
  • An adult male polar bear (Ursus maritimus) traveling on sea ice.
  • While traveling on melting summer sea ice, an adult male polar bear (Ursus maritimus) carefully presses on very thin ice to see if it will hold his weight.
  • A subadult male polar bear (Ursus maritimus) vigorously rubs himself against the snowy sea ice to clean his fur.
  • A subadult male polar bear (Ursus maritimus) dives from the edge of the sea ice into an open lead between floes.
  • A subadult male polar bear (Ursus maritimus) dives from the edge of the sea ice into an open lead between floes.
  • A subadult male polar bear (Ursus maritimus) pauses while traveling on the sea ice to scrutinize a scent he has detected in the air.
  • Two large, mature adult male polar bears (Ursus maritimus) confront one another warily on melting summer sea ice.
  • An adult male polar bear (Ursus maritimus) pauses while traveling on melting summer sea ice. The bear has blood on his face from feeding on a seal kill.
  • An adult male polar bear (Ursus maritimus) inches himself slowly backward from the sea ice into the water, to begin stalking a basking seal.
  • A large, mature adult male polar bear (Ursus maritimus) on sea ice.
  • An adult female polar bear (Ursus maritimus) resting on sea ice.
  • An adult male polar bear (Ursus maritimus) investigates a scent he has detected on the sea ice.
  • A polar bear (Ursus maritimus) "tastes" the air to augment its sense of smell as it rests on the sea ice.
  • An adult female polar bear and her triplets (about 2 years old) travel and hunt on the sea ice.
  • An adult male polar bear (Ursus maritimus) follows a scent on the sea ice.
  • In an area of the Arctic Ocean with very little sea ice, an adult male polar bear (Ursus maritimus) uses scattered floes for camouflage as he attempts to hunt a seal that is resting on the ice in the distance.
  • While stalking a basking seal on the sea ice, an adult male polar bear (Ursus maritimus) keeps a low profile after climbing out of the water.
  • While stalking a basking seal on the sea ice, an adult male polar bear (Ursus maritimus) keeps a low profile as he attempts to approach his quarry.
  • An adult male polar bear (Ursus maritimus) carefully slips into the water without making a splash to begin an aquatic stalk of a basking seal.
  • An adult male polar bear (Ursus maritimus) carefully slips into the water without making a splash to begin an aquatic stalk of a basking seal.
  • A large, mature adult male polar bear (Ursus maritimus) on melting summer sea ice, feeding on a seal kill. Glaucous gulls (Larus hyperboreus) and an ivory gull (Pagophila eburnea) are also eating bits of the carcass.
  • An adult male polar bear (Ursus maritimus) resting on sea ice after gorging on a seal kill. He is positioned to keep an eye on the remaining carcass. Glaucous gulls (Larus hyperboreus) are squabbling over scraps of meat.
  • A subadult male polar bear (Ursus maritimus) vigorously rubs himself against the snowy sea ice to clean his fur.
  • An adult female polar bear and her triplet cubs follow a scent as they travel and hunt on the sea ice near the front of a tidewater glacier.
  • A subadult male polar bear (Ursus maritimus) swims among floes of melting summer sea ice as he travels and hunts for seals.
  • An adult female polar bear (Ursus maritimus) swims among melting floes of summer sea ice as she travels and hunts for seals.
  • An adult female polar bear (Ursus maritimus) uses floes of sea ice for camouflage as she hunts a seal that is resting in the distance.
  • Two large, mature adult male polar bears (Ursus maritimus) on melting summer sea ice, feeding on a seal kill. Glaucous gulls (Larus hyperboreus) and an ivory gull (Pagophila eburnea) are also eating bits of the carcass.
  • A young adult female polar bear (Ursus maritimus) "still-hunting " in brash ice near the face of a glacier -- waiting for an opportunity to grab an unsuspecting seal as it surfaces to breathe.
  • An young adult female polar bear (Ursus maritimus) "still-hunting " in brash ice near the face of a glacier -- waiting for an opportunity to grab an unsuspecting seal as it surfaces to breathe.
  • An adult male polar bear (Ursus maritimus) swims in calm seas as he travels in an area of the Arctic Ocean with no sea ice.

Polar Bears 2