Even their inner organs are weighty. The heart of a blue whale can weigh up to 1,300 pounds, while its tongue can weigh 5,400 pounds, which is the average weight of an adult female elephant.

The Western Australia study filmed orcas — also known as killer whales — preying on blue whales, the largest animal on Earth, for the first time.

A study published in the journal Oceans details the remarkable chance encounter between a group of citizen scientists on a ...

“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 ...

What Does a Blue Whale Eat? The blue whale can be found feeding and traveling across all of the world’s oceans except for the extreme Arctic North. The blue whale’s diet consists almost ...

From the entanglement of Shelagh, a critically endangered North Atlantic right whale, to the awe-inspiring appearance of the first blue whale of the season, these events have stunned onlookers and ...

"A Blue Whale's tongue weighs as much as an African elephant, its heart is the size of a car and a Blue Whale is 33x what a T-Rex weighs," the owner said.

Blue Whales are the largest animal ever to have lived, but just reading that doesn’t quite convey their colossal proportions. They are bigger than the biggest dinosaur and weigh as much as 200 ...