Predators

In the Amazon lowlands, spiders as big as dinner plates dine on opossums.

There is no animal across the Americas that has been given more names than the hemisphere's dominant hunting cat often known as the mountain lion. Here's a look at the evasive predator.

Which unfortunate animal will wander too close to this ugly burrow fish's horrible mouth first?

Everybody has a plan until they get head-butted by an alligator.

A female jumping spider went to great lengths in a leaping experiment.

Llanocetus denticrenatus lived about 34 million years ago. It was big. It was an early ancestor of modern humpbacks and blue whales. And it had teeth.

A colorful sea slug feasts on microscopic marine creatures called zooplankton, but it captures more of them in a gulp by using a middleman.

With a skull-piercing bite, a jaguar makes a caiman into a meal.