So it's an overstatement to say humans are destroying all life on Earth — so far. Still, the narcissistic Homo sapiens may be interested to learn that it is on the endangered list. The BBC has the story on endangered mammals.
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We are a modern equivalent of the sabre tooth cat. Our massive brains are the product of competing and incompatible selective pressures. On one hand, a brain well-suited to problem solving, tool creation, etc., serves well to advance the survival of an organism — us — that is otherwise quite ill-adapted — weak, slow, poor vision, poor hearing, poor olfaction, easily hunted. . . .
But, as the history of the past two or three thousand years makes clear, this large brain has also enabled a war-like self-destructiveness. No other species so rapidly annihilates not just one habitat but all of them.
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