Dine or dash? Genes help worm decide when to look for new food

Researchers have identified a genetic circuit that helps worms decide whether to dine or dash. For worms, choosing when to search for a new dinner spot depends on many factors, both internal and external: how hungry they are, for example, how much oxygen is in the air, and how many other worms are around. A new study demonstrates this all-important decision is also influenced by the worm's genetic make-up.

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