A tiny invasive ant is disrupting the life of African lions. It's making it harder for them to hunt zebra, their preferred prey.

A rare cancer is killing tasmanian devils, which in turn is affecting activity of another predator native to Australia.

A new study investigates lions' interactions with humans in a diminishing habitat.

Watch two camera trap videos that show a two-toed sloth fending off an attacking ocelot in the Ecuadorian Amazon.

Researchers used a tiny predator-prey-parasite system inside 20-gallon water tanks to test the healthy herds hypothesis.

After observing that virtually no creature wants to eat a giant velvet mite, entomologist Justin Schmidt tasted one himself.

Even hikers, not hunters, prompt many animals to find new ground in Glacier National Park, research indicates.

Animals' bright colors can be a warning to predators or an appeal to mates. Scientists looked back in time to figure out why.

Recreating 130,000 years of mammal food webs with machine learning reveals the scope of the biodiversity crisis.

The megalodon was an even more fearsome predator than previously thought, able to take down prey the size of modern orcas.