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 her first assignment, Vega traveled to the island nation of Dominica where she reported on sperm whales, one of the ocean's largest marine mammals. Sperm whales are considered a "vulnerable ...

As big as a large sperm whale at more than 17 meters ... In fact, it was the first giant creature to ever inhabit the Earth that we know of.

But a study, published Friday in the journal Frontiers in Marine Science is the first to show that a ... You can find orcas in every ocean on Earth. Killer whales are actually the largest member ...