Timo Dersch had a close call with a humpback whale while freediving with orcas in the waters surrounding Norway ...

The world under the ocean is breathtaking, both literally and figuratively. While the wonders were formerly unseen, the advent of cameras and social media has made them greatly accessible.

The blue whale is the biggest animal that has ever existed ... and even other whales and dolphins. Sperm whales dive up to 3,000 feet (900 m) below the ocean's surface to hunt for giant squid and ...

Two free divers met a playful baby humpback ... The couple booked a whale-spotting boat tour with Moorea Blue Water on the final day of their trip to Moorea, Tahiti last September.

Endangered pygmy blue whales dive to depths in the ocean to forage ... and the Center for Whale Research (WA) has documented. In a new paper led by AIMS researchers Dr. Michele Thums and Dr ...

Scientists may finally have an explanation for the longstanding mystery of why blue whale calves are rarely sighted, an advance that could help better conserve the critically endangered species.

Marine mammals as a group are accomplished divers. Elephant seals have been recorded diving for hours at depths of more than 1,500 metres. So far, the deep diving record holder is the Cuvier's beaked ...