The Olive sea snake has special valves in its nose to keep water out while its swimming.© DNC40/Shutterstock.com Sea snakes are among the most venomous reptiles on the planet, having evolved powerful ...

Haley Mast is a freelance writer, fact-checker, and small organic farmer in the Columbia River Gorge. She enjoys gardening, reporting on environmental topics, and spending her time outside ...

Humans use a snorkel and fish have gills. Now researchers have found a sea snake which uses a complex system of blood vessels in its head to draw in extra oxygen when it dives and swims underwater.

GAINESVILLE, Fla. --- Sea snakes are an evolutionary success story. With about 70 species, they're the most diverse reptile group in the ocean, outnumbering sea turtle species 10-to-1. They sport a ...

Add Yahoo as a preferred source to see more of our stories on Google. The Olive sea snake has special valves in its nose to keep water out while its swimming.© DNC40/Shutterstock.com Apart from its ...