Marine biologist Carrie Newell photographed four blue whales — the largest animals on Earth — 3 miles off Depoe Bay.

Blue whales also give birth to enormous calves, the largest in the animal kingdom. They are usually between 6 to 8 meters (19 to 26 feet) in length and can weigh as much as 3.5 tonnes, not far off ...

The blue whale is truly the ocean’s mighty ruler, reigning as the largest animal to have ever lived on Earth. These majestic giants can reach lengths of up to 100 feet and weigh as much as 200 ...

It is the biggest animal alive today and the largest animal that has ever lived. Blue whales can grow to be 110 feet (33.5 m) long — about as long as two semitrailers — and weigh as much as ...

According to the World Wildlife Foundation, the largest animal in the world is the Antarctic blue whale. It can weigh up to 400,000 pounds and stretch an astonishing 98 feet in length.

Blue whales are larger than dinosaurs. Measuring their heart rate could help reveal the limits of body size. Scientists are measuring whale heartbeats to unravel one of biology’s biggest mysteries.

Blue whales are still historically large animals: Some can grow to more than 100 feet. Perucetus colossus was “possibly the heaviest animal ever,” said study co-author Alberto Collareta, a ...

There was cheering and shouting far off shore on July 4 when a local whale watch boat enjoyed a rare sighting of the largest animal on the planet — a blue whale. Excitement ran through the boat ...

The endangered blue whale is the largest animal to have ever lived on Earth — let alone California. At up to 400,000 pounds (the weight of 33 elephants!) and as long as 90 feet, they migrate up the ...

The blue whale has long been considered the largest animal to have ever existed, even dwarfing the biggest known dinosaurs. But now a new species threatens to steal the crown, and upends what we ...

It is the biggest animal alive today and the largest animal that has ever lived. Blue whales can grow to be 110 feet (33.5 m) long — about as long as two semitrailers — and weigh as much as ...