Crabs’ famous sideways walk may trace back to a single evolutionary moment 200 million years ago. Researchers found that most ...

An alarming number of sea mammals are washing up on Southern California beaches. Experts predict a possible connection to run off from the Los Angeles wildfires earlier in the year. NBC News' David ...

The transition from water to land is a question that still intrigues scientists. Those ancient organisms would have needed to adapt to several new challenges to life out of water. So, how did they do ...

Juno Beach, Fla. — The veterinary staff at a Florida sea turtle hospital is getting help from space to monitor the animals they've rehabilitated. They're particularly interested in amputees. Using ...

If you pick up plastic trash from a beach, you’re helping protect marine wildlife from harm. And every little piece—from a plastic bottle cap to food wrappers—matters, because even small amounts of ...

Animals come in an extraordinary range of body shapes. A starfish looks nothing like an earthworm, a mouse, or a human. Yet even closely related species can appear radically different: corals, ...

Scientists at MIT have found compelling chemical evidence that Earth’s earliest animals were likely ancient sea sponges. Hidden inside rocks over 541 million years old are rare molecular “fingerprints ...

New research shows why some shelly critters flourished in the ocean’s harshest habitats — and others didn’t Jack Tamisiea Beds of Bathymodiolus mussels provide important habitat for other deep-sea ...

Animals that researchers call “supersucklers” come back to nurse even after they can hunt, mate and fend for themselves. By Elie Dolgin For most mammals, growing up means giving up their mother’s milk ...