Science - USA (2020-09-25)

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25 SEPTEMBER 2020

E x p l o r i n g n o n l i n e a r e f e c t s

with x-rays pp. 1568 & 1630

Y chromosome replacement in

Neanderthals pp. 1565 & 1653

Costa Rica nurtures a new

cadre of ecologists p. 1558

Carrion crows display sensory

consciousness pp. 1567 & 1626

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