Body & Brain

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Ants with caterpillar

BUILDING BODYGUARDS  Neglecting their colony tasks, ants hang around — and defend — a Narathura japonica caterpillar that oozes droplets spiked with substances that alter ant brain chemistry.

CONNECT THE NEURONS  In this computer rendering of a bit of mouse brain based on scanning electron images, some nerve cell dendrites touch an axon (green) and make connections (orange), while other dendrites don’t (blue).

doughnut

The advent of mass-produced trans fat helped make the doughnuts, cookies and crackers we love inexpensive and shelf-stable. But now companies have to get along without them, while we still want to have our cake and eat it, too. 

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