May 27, 2017 | Science News

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Cover of May 27, 2017 issue
Mongolian horses

In the May 27 SN: Genetic intruders, seeing Chaco in a new light, an artificial womb, Mars’ origin revisited, domestication of the horse, glimpsing Earth’s glacial past, what’s in a fang blenny’s bite and more.

May 27, 2017