A blue whale calf with its mother near the coast of island Pico (Azores)© tane-mahuta/iStock / Getty Images Plus via Getty Images "The blue whale is the largest and loudest animal on Earth." The blue ...

Discover the blue whale, the biggest animal to ever live. Learn its size, diet, and surprising facts about this ocean giant.

Add Yahoo as a preferred source to see more of our stories on Google. Just a blue whale's tongue weighs as much as an adult elephant. But what caused blue whales to grow to such an extraordinary size?

Only two blue whale births have ever been recorded in human history, both decades ago. This remains an extraordinary mystery, given there used to be hundreds of thousands of blue whales before whaling ...

Whale biologist Carrie Newell spotted four blue whales feeding about 3 to 4 miles offshore from Depoe Bay, Oregon on June 27 — an exceptionally rare event in the state’s coastal waters. Newell, ...

Nature enthusiasts from across the country on Thursday hopped on board a full-day boating adventure in the hopes of getting an up-close encounter with the largest animal on Earth -- the blue whale.

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