Walruses off the northwestern Alaska coast.
USGS scientists study walruses off the northwestern Alaska coast in August as part of their ongoing study of how the Pacific walrus are responding to reduced sea ice conditions in late summer and fall.
Walruses resting on an ice floe in the Chukchi sea.
Scientists prepare to radio-tag walruses in the Chukchi sea to track movements as sea ice is reduced in the region.
USGS scientists can follow radio-tagged walruses remotely as they move around the Arctic Basin.
Scientists travel to the Chukchi and Bering seas to radio-tag walruses.
Scientists radio-tag walruses in the Chukchi and Bering seas to better understand their movements and foraging behavior.