Blue whales are not only the largest animal on earth today but the largest known animal ever to have lived on earth. The largest blue whale ever recorded weighed over 199 tons. Even average-sized blue ...

Killer whales have been spotted hunting down dolphins - and sharing the catch with pals - for the first time. The dramatic new images of orcas in the Humboldt Current system, off Chile, show them ...

As io9 explains, researchers in Britain and China studied the genetic material of twelve whale and dolphin species, including bottlenose dolphins and sperm whales (those are the ones you are probably ...

Whales are a group of mammals that live in oceans. They include some of the largest animals on Earth. The blue whale is the biggest animal that has ever existed. Whales can be found in every ocean, ...

For the first time, scientists have calculated a detailed “energetic budget” for Hawaiʻi’s short-finned pilot whales, ...

Short-finned pilot whales are the ghosts of the Hawaiian coast. They often appear briefly at the surface before diving out of ...

Blue whales making an unusual winter appearance. Humpbacks sticking around for months, a pair lunging out of the water in sync with one another in a video making a virtual splash. And thousands of ...

Short-finned pilot whales love eating squid, and boy do they stuff themselves with it, new research finds. Here’s some ...

Dolphins live in almost every ocean, except most tend to avoid the cold waters in the Arctic and around Antarctica. Some also live in rivers, including the Amazon River in South America and the Ganges ...