The biggest blue whale ever recorded weighed 190 tonnes ... but their early ancestors lived on land, some resembling small deer. Over time they moved into the water, and basilosaurids are believed ...

Whales are a group of mammals that live in oceans. They include some of the largest animals on Earth. The blue whale is the ...

“It’s the largest whale to have ever lived. It’s the largest animal to ever have lived on Earth – so larger than all the dinosaurs, larger than all the other whales,” she explaine ...

As one of the largest predators to have ever lived, megalodon captures people's imagination ... It may have been comparable in length to today's biggest whale sharks, the largest of which has measured ...

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A blue whale calf grows at a rate of 200 pounds per day! Although its commercial importance has dwindled, it is the largest animal that ever lived. Some specimens are 100 feet long and weigh 150 tons.

It's bigger than the biggest whale shark, which is the largest fish ... The megalodon had the strongest bite force of any animal that ever lived, three times that of a T-Rex.

One moment they were paddling across calm ocean waters, and the next, they were plunged into darkness — inside a humpback whale ... whales live in oceans worldwide, with the largest populations ...

As one of the largest predators to have ever lived, megalodon captures people's imagination ... It may have been comparable in length to today's biggest whale sharks, the largest of which has measured ...