According to sexual selection theory, the sexes are faced with opposing evolutionary goals. Male fitness benefits from access to females, whereas female fitness is constrained by food resources and ...
Add Yahoo as a preferred source to see more of our stories on Google. A polar bear in Canada. (Photo by USFWS) As climate change continues to affect wildlife habitats in the Arctic, scientists are ...
CC0 Usage Conditions ApplyClick for more information. After mating takes place, a female polar bear will prepare for her impending pregnancy by eating voraciously. In all, she will pack on more than ...
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