Humpback whales may be communicating with humans in a playful way, according to researchers who have been studying the marine ...

Orcas, known for their intelligence and power, have been observed sinking boats, leaving everyone wondering why. This unexpected behavior has left scientists and sailors alike puzzled. Is it a sign of ...

“Humpback whales often exhibit inquisitive, friendly behavior towards boats and human swimmers,” said co-lead author Jodi Frediani, marine wildlife photographer and U.C. Davis Affiliate.

(Read about orcas that kill great white sharks.) However, the Antarctic humpbacks didn’t engage physically. They just swam over and trumpeted. Why? It might be an example of mobbing behavior ...

However, multiple species of whales and dolphins are among the over 1,500 species documented exhibiting same-sex behavior. Weighing up to 40,800 kilograms (90,000 pounds or 45 tons), gray whales ...

Toothed whales use sound to find their way around, detect objects, and catch fish. They can investigate their environment by ...

A pod of orcas was spotted swimming in shallow water near a beach in Rio Negro, Argentina – including two calves possibly being trained in a clever hunting technique used by local killer whales.