Blue Whale Heartbeat

A blue whale’s heart is so large that a human could swim through its arteries. Their heartbeat can be detected from two miles away underwater. ❤️🐋
You aren't kidding! A blue whale's heart is the biggest of any animal on Earth, clocking in at around 1,300 pounds! That's about the weight of a grand piano and definitely big enough for a human to swim through its arteries.
 
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