Why Extraterrestrial Life May Not Seem Entirely Alien

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Why Extraterrestrial Life May Not Seem Entirely Alien

Dan Falk


Quote:“The bottom line — why animals do the things that they do, why they are the things that they are — is because of evolution,” said Kershenbaum, a lecturer and director of studies in the natural sciences at the university’s Girton College. He argues that evolution is a universal law of nature, like gravity — and that studies of plants and animals here can therefore tell us something useful about potential inhabitants of worlds far beyond Earth. He finds evidence for this in the process of evolutionary convergence, in which unrelated lineages of organisms evolve similar features as adaptations to similar environmental challenges. It’s an argument he presents in detail in his new book, The Zoologist’s Guide to the Galaxy: What Animals on Earth Reveal About Aliens — and Ourselves, which draws on comparisons of animals’ physical adaptations as well as his own research (and that of others) into animal communications.

Quanta recently spoke with Kershenbaum at his home in Cambridge via videoconference. The interview has been condensed and edited for clarity.
'Historically, we may regard materialism as a system of dogma set up to combat orthodox dogma...Accordingly we find that, as ancient orthodoxies disintegrate, materialism more and more gives way to scepticism.'

- Bertrand Russell



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