Whales: Largest Mammals on Earth

This is a news story, published by Live Science, that relates primarily to Pakicetus news.

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whales mammals

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Whales: Facts about the largest animals on Earth

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72% Informative

The blue whale is the biggest animal that has ever existed.

There are over 90 whale species, with many species migrating long distances between feeding and mating grounds.

Whales evolved from a deer-like land mammal called Pakicetus about 50 million years ago.

Cuvier's beaked whales hold the record for the deepest-diving mammal.

A whale's brain weighs about five times heavier than a human brain.

Blue whales can eat as much as 6 tons ( 5.4 metric tons ) of krill every day .

The smallest whale species is the dwarf sperm whale, which is about 7 to 9 feet ( 2 to 2.7 m) long and weighs between 400 and 600 pounds ( 181 to 270 kg ) Blue whales are listed as an endangered species, with only between 10,000 and 25,000 left in the world.

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informal

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English

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