Nudibranchs look like fragile, colorful decorations drifting across coral reefs — but their biology tells a different story. These sea slugs steal toxins from their prey and repurpose them as chemical ...

Hundreds of millions of years ago, the first animals to crawl onto land were strict meat-eaters, even as plants had already taken over the landscape. Now scientists have uncovered a ...

This sea turtle swims among colorful coral reefs in the Great Barrier Reef, Australia. Coral areas provide food and shelter ...