TIL that the closest living relative of all whales is the hippopotamus. Whales evolved from a terrestrial(land) animal, this is the reason whales can't breathe under water like fishes and need to come up for air. They literally evolved backwards, but in the process have the become the largest mammal

TIL that the closest living relative of all whales is the hippopotamus. Whales evolved from a terrestrial(land) animal, this is the reason whales can't breathe under water like fishes and need to come up for air. They literally evolved backwards, but in the process have the become the largest mammal https://www.rom.on.ca/en/blog/hippos-and-whales-unlikely-cousins Difficult-Amoeba January 31, 2021 at 02:16PM