Tens of millions of years ago, the ancestors of the whales left the land for the ocean. Today, their descendants could no longer go back in the opposite direction. This point of evolutionary non-return would be located just after the still amphibious stadium of the seals.
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Tens of millions of years ago, the ancestors of the whales left the land for the ocean. Today, their descendants could no longer go back in the opposite direction. This point of evolutionary non-return would be located just after the still amphibious stadium of the seals.