The North's 'apex predator' threatened by receding sea ice in the Beaufort Sea, study says | CBC News
Life and Death | Polar Bears are apex predators. To survive … | Flickr
Polar Bear - an overview | ScienceDirect Topics
What are the predators and prey of polar bears? - Quora
Discovery - An apex predator at the top of the food chain, polar bears can signal when there are problems in the Arctic marine ecosystem. Studying polar bear populations is essential to