Blue whales are not just the largest animals alive today, but the largest animals to ever live on Earth. They can stretch ...

The heart of a blue whale can weigh up to 1,300 pounds, while its tongue can weigh 5,400 pounds, which is the average weight of an adult female elephant. Blue whales have sleek, streamlined bodies ...

A humpback whale briefly engulfed a kayaker off the coast of Chile in an incident caught on camera. Experts say it couldn't have swallowed him even if it wanted to.

There is excitement and concern for North Atlantic right whale mother and calf spotted in busy shipping lanes.