A newly discovered protist, _Euplotes gigatrox_, can transform into massive cannibalistic supergiants, devouring genetically ...

A tank this size does not change overnight. The before and after difference shows just how much work went into it. What ...

The elusive mammal has been targeting nests for weeks.

Although they're fish, tunas count among the rarified group of animals that can keep their bodies warmer than the surrounding environment. Their warm-bloodedness ("endothermy") gives them a ...

Long before humans appeared, enormous predators dominated Earth's rivers, lakes, and coastlines. New fossil discoveries ...

As red-winged blackbirds wrap up their breeding season, Ah-Nab-Awen Park has signs up to warn people they could be attacked ...

A state predator control program has culled more than 250 bears in Southwest Alaska over the past four springs in an attempt to boost the Mulchatna caribou herd and help caribou hunters in the region.

The long-running T. rex and Giganotosaurus face-off is compelling, but the two predators never coexisted. Their comparison instead highlights how size, bite force and hunting style evolved for ...

Megalodon’s enormous size is estimated from limited fossils, including vertebrae and teeth. (lexaarts/Creatas Video+/Getty Images Plus) In 1978, a wonder emerged from the crumbling earth of the Gram ...

The world’s most famous dinosaur entered life looking nothing like the giant predator that would one day dominate North ...

Christina Vander Berg knelt in the dirt, carefully measuring a paw print. She’s a range rider — helping to mediate conflict between wolves and Colorado ranchers.

While it's certainly well designed and delivers respectable 1080p gaming performance, another PC offers better frames per dollar.