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A Blue Whale’s Heart Beat Taken for the First Time Ever Stuns Scientists, It Can Survive on Just Two Beats per Minute
In this period the whale went out on many food-foraging missions, diving up and down in the water. His longest dive lasted for 16.5 minutes and the maximum depth he swam underwater was 600 feet ...
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Whales: Facts about the largest animals on Earth
The blue whale is the biggest animal that has ever existed ... This fat, called blubber, keeps the heat in and the cold out. Whales' large size also helps them stay warm, since bigger animals ...