Bite force, a measure of the strength of an animal's bite, helps researchers understand a species' role in the ecosystem.

IF YOU'VE ever watched your cat stare intensely out the window at a bird, making that peculiar "ek-ek-ek" chattering sound ...

The NFL fined Broncos defenders P.J. Locke, Malcolm Roach and Alex Singleton after key Week 16 plays vs. the Jaguars, per ...

Insane footage from Guatemala shows tourists and a group of coatis when, suddenly, a jaguar, leaps from the shadows and ...

A large alligator nicknamed 'Godzilla' was caught on video dragging an enormous Burmese python through the water in the ...

Guanaco herds frequently place a ‘sentinel’ on a vantage point to look out for danger while the remainder of the herd are ...

Authorities ended a 15-hour search for Monterey County's Erica Fox, missing after a shark attack off Lovers Point in ...

Long before modern bears were around, Earth was home to massive bear species. Like today’s bears, these animals roamed forests and tundra. However, these ancient animals towered over today’s largest ...

The cats’ new nutritional source in southern Argentina has led to increased concentration of the predators, who have also ...

From stalking jaguars to leaping lemurs, these award-winning images reveal the raw beauty and biological marvels of wildlife ...

A newly documented jaguar in southern Arizona suggests that this powerful cat is slowly reclaiming parts of its historic U.S.

From an elusive jaguar to an industrious beaver, photographers captured iconic animal moments around the world.