Animals vary greatly in size, with species like the Blue Whale and Ostrich standing out as some of the largest creatures on ...

It may have been comparable in length to today's biggest whale sharks, the largest of which ... of the most common fossils you can find. Great white sharks are some of the world's most misunderstood ...

They include some of the largest animals on Earth. The blue whale is the biggest animal that ... seals, penguins, sharks, and even other whales and dolphins. Sperm whales dive up to 3,000 feet ...

Tourists on a whale-watching boat off Australia witnessed five families of killer whales attack 150-ton mammal.

the whale shark is not only the largest shark, but the largest fish in the world. Steve dives with this gargantuan shark off the coast of Mozambique in Africa.

A newly discovered whale that lived nearly 40 million years ago could be the heaviest animal ... The biggest blue whale ever recorded weighed 190 tonnes, according to Guinness World Records.

The animals ... while whale sharks are up to 12 meters long. Gerardo del Villar is a witness to this diversity. He is the only Latin American to photograph and interact with 10 of the world ...