A young humpback whale made an unusual appearance in Australia’s Sydney Harbor, disrupting traffic and delighting onlookers.

A massive sea creature was spotted off the coast of California with her baby in a moment deemed a “thrill” for boaters. The ...

Jono Allen tells PEOPLE exclusively about his mesmerizing career as an underwater photographer, and how one ocean dive with whales changes his life forever ...

For millions of Australians, living on the coast means being right on the doorstep of one of the extraordinary spectacles on earth — the annual humpback migration season. The annual journey, which ...

America's least-visited state is an outdoor wonderland full of national parks and mountains, and a destination to spot bears, whales and other wildlife.

Short-beaked dolphins range between 6 feet and 8 feet long and usually weigh around 170 pounds, according to the National ...