The ocean is going silent. Blue whales, the gentle leviathans that swim in all but one of the world’s oceans, are the singers of the underwater world. Their groans, whistles and clicks are ...

The blue whale, which can reach up to 100 feet (30 meters) long and weigh 200 tons, lowers its heart rate to as little as two beats per minute as it lunges under the ocean surface for food ...

A heart to power a giant One of the most interesting things about the blue whale is its heart. It weighs around 180 kilograms and is built to support the whale’s massive body.

One of nature's most awe-inspiring creatures, the rare and giant blue whale, was seen off the coast of Massachusetts in a rare back-to-back sighting. Cape Ann Whale Watch, a touring group based in ...

The blue whale, Balaenoptera musculus, regularly tips the scales at over 100 tonnes. Some estimates have pegged individuals at 190 tonnes. But now, it seems, the blue whale has a challenger.