Alien life: a zoologist's guide

What do creatures on Earth tell us about the limits on life from other planets? A new book explains...
19 October 2020

SWAMP_SUNSET

The sun setting over an alien-looking swampy landscape.

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For decades, astronomers have been scouring the skies looking for signs and signals that appear to be from creatures on other planets. But discussions on this topic invariably stray into science fiction and conjure images of ‘little green men’. What might complex alien life really look like? That’s the subject of The Zoologist’s Guide to the Galaxy: What Animals on Earth Reveal about Aliens – and Ourselves, a new book by the University of Cambridge’s Arik Kershenbaum. Adam Murphy and Chris Smith heard more...

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