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Life & Evolution

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cacao flowers

FLOWERS FOR CHOCOLATE  Pale petals curl over a cacao flower’s male parts. Here, two developing fruits, or seedpods (top left), will eventually ripen, housing the seeds that give the world chocolate.

man with sensors on neck

THROAT MOTION These Band-Aid‒like throat sensors can monitor the recovery of stroke survivors long after they leave the hospital.

Matabele ant

ANT RX A Matabele ant from Africa uses her mouthparts to treat a nest mate’s wounded leg in a prompt and effective insect version of health care.

Life & Evolution

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