From scars to barnacle blooms, a whale’s tail is a living record of its life.

Scientists said the number of gray whales found dead in San Francisco Bay has reached the highest in a quarter century, with the latest incident taking place earlier this month.

Researchers concerned over uptick in whale deaths Nearly two dozen whales have died in the San Francisco Bay Area in recent months, according to animal rescue groups.

People at the southern California Ventura Harbor were in for an amazing sight when a juvenile humpback whale swam right past them. Experts believe the young whale had separated from its pod and ...

A marine biologist captured video of the moment a bowhead whale cracked through a layer of ice in West Greenland to take a breath.

A beluga whale at the Shedd Aquarium became the first to recover from general anesthesia used during surgery this week. The 12-year-old female whale, named Kimalu, underwent a first-of-its-kind ...

A beluga whale at Chicago's Shedd Aquarium became the first known beluga whale to recover from general anesthesia after a successful surgery this week.

A humpback whale was deeply wounded in what National Park staff say is an apparent boat collision.

A humpback whale suffered a severe injury following a vessel collision at Glacier Bay National Park in Alaska.

Researchers have identified a fascinating behavior in killer whales, aka orcas: they sometimes offer to share their prey with humans. And while the orcas haven't gone on the record to confirm it ...

Visitors to Sanibel experienced an unexpected encounter when they spotted a massive whale shark just 50 miles off the island's shore.

Humpback whales are some of the largest creatures on Earth and live in every one of the planet’s oceans. Their seasonal migrations are among the longest of any mammal, stretching thousands of ...