and mammals in many parts of the Arctic - including polar bears, walrus and caribou - are beginning to feel the impacts of reduced sea ice and warming tundra habitat.
(mammals in many parts of the Arctic - including polar bears, walrus; to feel; the impacts of reduced sea ice and warming tundra habitat)
mammals in many parts of the Arctic - including polar bears, walrus
to feel
the impacts of reduced sea ice and warming tundra habitat