Alaskan lakes/rivers teem with grizzly bears, moose, seals, whales, sea otters, etc. But beware, know the dangerous ones!

We all want to believe that magical creatures exist. When the world feels too heavy, fantasy offers a world where anything is possible. Humans have not changed much over the centuries, and perhaps ...

Scientists may have been dramatically undercounting the number of vertebrate species on Earth. A large analysis of more than 300 studies suggests that for every recognized species of fish, bird, ...

In rare sightings, scientists spotted endangered blue whales during two aerial surveys 24 hours apart off the coast of New ...

Blue whales, the largest animals on Earth, have been spotted not far off the coast of Massachusetts in what the New England ...

Mammals are not especially diverse. Roughly 6,800 mammal species are known to exist, compared with about 8,800 species of amphibian, 11,000 species of bird and 12,500 of reptile. Yet when most people ...

Scientists found evidence that killer whales may hunt and eat other killer whales, revealing new insights into how ...

Observers with New England Aquarium said it's the first time they have documented blue whales in their southern New England ...

A new study shows that as humpback whale populations recover from past whaling, older males are gaining a major advantage in reproduction. Early in the recovery, breeding groups were dominated by ...

A plantation worker photographed this new genus of mammal in New Guinea, thought to have been dead for 6,000 years.

The North Atlantic right whale is one of our most endangered large whale species. They have been listed as endangered since ...

As humpback whales recover, older males are fathering more calves, revealing how whaling still shapes mating and competition ...