The largest animal ever recorded is the Blue Whale. Learn its record-breaking size (up to 190 tonnes, 91 ft long) and why it ...

Blue whales — the largest animals on Earth — aren't singing as much anymore, and that's got scientists concerned. A study published in PLOS analyzing six years’ worth of acoustic data collected from ...

There could be a new contender for heaviest animal to ever live. While today's blue whale has long held the title, scientists have dug up fossils from an ancient giant that could tip the scales.

Male and female whale sharks - filter-feeding marine behemoths - grow at different rates, with females doing so more slowly but getting much larger than the guys, according to research that offers ...