At 150 tons, an adult blue whale is heavier than the biggest dinosaurs were, and can reach a length of 100 feet. Its two-ton heart can weigh as much as a great white shark, with valves large enough for a child to crawl through. They burn 3 million calories a day.

Local News | As whale sightings go, this is big | Seattle Times Newspaper

So cool. I loved marine biology as kid. And I guess I still do!

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