Deep in the Pacific, humans have tracked a mysterious whale’s call for decades—but no other whale seems to respond. And now, we might be running out of time to find the source.

The blue whale is the largest animal on Earth and likely the largest animal ever to have lived. While this ocean mammoth is dubbed “blue,” its color is more a reflection of the water it swims ...

From mammoth African elephants to giant whales, let's take a look at the 8 largest mammals that inhabit our planet.

A 40-million-year-old fossilised whale previously thought to be the heaviest animal of all time is now thought to weigh less than a blue whale. The huge, 17-metre-long whale, which was believed to ...

Look out, blue whale – there’s a new contender for your heavyweight title. A newly discovered whale that lived nearly 40 million years ago could be the heaviest animal to have ever lived ...

the Perucetus colossus whale. Previously, the largest known animal in the world was the blue whale, weighing up to 180 tons and reaching 100 feet long. The blue whale's tongue alone is as heavy as an ...

Biologists found significant blunt-force trauma on the right side of the head of a 3-year-old whale and suspect it was hit by ...

The Museum's vast blue whale skeleton is more than just a specimen - it's a 4.5-tonne parcel of social history. The animal has been dead for more than 120 years, but the legend of the day it arrived ...

A sperm whale stranded on Cuttyhunk Island over the weekend, adding to alarming whale death toll since December. Here's what ...

Surprise: Blue Whales Are Mostly ... Why Killer Whales Attacked a Blue Whale—Here's the Surprising Reason Why Watch Watch the World’s Biggest Animal Lunge for its Dinner Watch the World ...