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Comment count is 2
Mr. Purple Cat Esq. - 2021-01-17

Apparently swim-bladders and lungs evolved from the same organ that kind of did both jobs.

Lungs are useful for a fish cus theres waaaaaaay higher concentration of oxygen in the air than in the sea and its easier to get.

Thats why aquatic mammals like whales and dolphins can *dominate* fish so badly. They can get way more oxygen and run a faster metabolism, the classic mammalian strategy of just being a super charged turbo killin' machine!


SolRo - 2021-01-17

It’s the mammal vs reptile argument. Both have their niches.

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