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

They include some of the largest animals on Earth. The blue whale is the biggest animal that has ever existed. Whales can be found in every ocean, with many species migrating long distances ...

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Scientists may finally have an explanation for the longstanding mystery of why blue whale calves are rarely sighted, an advance that could help better conserve the critically endangered species.