It’s hard to picture a creature so immense that a person could stand inside one of its arteries, yet that’s the reality of ...

In the animal kingdom, the creatures with the biggest hearts – relative to their size – are often the tiniest among us.

WASHINGTON (Reuters) - Using a bright orange electrocardiogram machine attached with suction cups to the body of a blue whale, scientists for the first time have measured the heart rate of the world's ...

A biologist explains the surprising evolutionary math behind how the blue whale became the largest animal that has ever lived ...

The blue whale, the largest creature on Earth, has the heart that is famously compared to the size of a small car or piano.

“The blue whale is the largest and loudest animal on Earth.” 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,” ...

Blue whales are fascinating animals. At 24-30 metres in length (longer than a basketball court) they are the largest creatures on Earth. They are also among the rarest. Estimates suggest that there ...

If you're an ocean lover and find everything that lives in it fascinating and awe-inspiring, this video that ABC News shared on Monday, July 15th is a must see! A lucky diver in the Maldives had an ...

SAN DIEGO — San Diego whale watchers just returned from a trip of a lifetime. Right off the coast of Mission Bay, more than 100 Blue whales were spotted. The tour boat company, Gone Whale Watching, ...