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Body + BrainBody & Brain

Rosetta, Zika, and Retroviruses: Week in Review

ByAllison EckNOVA NextNOVA Next

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This Week’s NOVA Next Feature

Viruses that infected our ancestors provided the genetic foundations for many of the traits that define us. NOVA Next contributor Carrie Arnold

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reports the story.

Without retroviruses, mammals might never have evolved placentas.

What We’re Reading

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