(CNN) — Scientists have discovered a 246 million-year-old marine reptile fossil, the oldest of its kind to be found in the Southern Hemisphere, shining a new light on the early evolution of marine ...

Although an extinct animal was from a different group of marine mammals, an examination of fossils showed it evolved a way of eating that was very similar to that of modern walruses. By Asher Elbein ...

Sensitive hearing may have evolved in mammal ancestors far earlier than scientists once believed. By modeling how sound moved ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. The living mammal family tree is full of diverse species–big ...

A new study of dolphins and seals shows that despite their remarkable adaptations to aquatic life, exercising while holding their breath remains a physiological challenge for marine mammals. The study ...

Field photos courtesy Cetacean Ecology, Behaviour and Evolution Lab (CEBEL), Flinders University. Whales, dolphins and other ...