Eli5 why hippos can’t swim because of their weight yet blue whales can
In: 7
It’s not just about weight or mass, it’s about density and buoyancy. A blue whale can hold 5,000 litres of air in their lungs and this provides a ton of buoyancy. Whales have less bone density as well. And then you add blubber into the mix which is extremely buoyant as well.
So less dense bones, blubber to make it easy to float, and a ton of air helping make then even more buoyant.
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