Survival of Submerged Mammals

Abstract
Do not even you know that a green drake, and an alder fly, and a dragon fly, live under water till they change their skins...? And if a water animal can continually change into a land animal, why should not a land animal sometimes change into a water animal?Charles Kingsley1 MAMMALS have evolved from fishes.2 Mammalian fetuses live in amniotic fluid. Newborn mammals can survive in water for surprisingly long periods. Signs of life have been observed in puppies submerged for as long as fifty-four minutes,3 and newborn rats submerged in water at 37°C. continue to make respiratory movements . . .

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