A blue whale, the largest animal on the planet, engulfs krill off the coast of California.
Silverback Films/BBC/Proceedings of the Royal Society B
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Silverback Films/BBC/Proceedings of the Royal Society B
Whales might be the largest animals on the planet, but they haven't always been so huge. Researchers say the ocean giants only became enormous fairly recently, and over a short period of time.
A blue whale, the largest animal on the planet, engulfs krill off the coast of California.
Silverback Films/BBC/Proceedings of the Royal Society B
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Silverback Films/BBC/Proceedings of the Royal Society B