The blue whale is the largest animal on Earth. It plays a vital role in the ocean ecosystem. These whales grow to massive ...

A new species of ancient whale might be the heaviest animal ever found. Researchers describe the new species named Perucetus colossus, or "the colossal whale from Peru," in the journal Nature on ...

Newly discovered ancient whale may have been heaviest animal ever There could be a new contender for heaviest animal to ever live. While today's blue whale has long held the title, scientists have ...