Off the Pacific coast of Canada, scientists have captured something that challenges long‑held assumptions about life in the ...

How big they are: From 5 to 32 feet (1.5 to 10 meters) long, depending on the species Dolphins live in almost every ocean, except most tend to avoid the cold waters in the Arctic and around Antarctica ...

New footage shows orcas and dolphins coordinating hunts, hinting at interspecies teamwork to track and catch salmon off ...

Biologists discovered killer whales and dolphins working together to hunt salmon, a behavior never before documented in this population.

Discover the key differences between dolphins and whales, including their size, body structure, feeding habits, social ...

Preface -- What is a marine mammal? -- Main groups of marine mammals -- Modern taxonomy of marine mammals -- How to look for marine mammals -- Natural history of marine mammals -- Conservation -- How ...

Research shows male dolphins with strong friendships age more slowly. Social bonds reduce stress and protect health at the cellular level.

Scientists have discovered that juvenile bottlenose dolphins have specialized receptors for detecting the fatty acids in their mother's milk. These findings, published in the journal Marine Mammal ...

Dolphins, highly intelligent mammals, are known for forming bonds with humans and performing in shows globally. In Nepal, ...

A toxic algal bloom leaving an increasing number of marine mammals stranded along Southern California beaches shows no signs of subsiding and “will only get worse,” officials said Monday. “This week, ...