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Brain, heal thyself

The rodent brain can be stimulated to replace damaged cells with new ones.

Protein helps the brain connect

Neuroligins may help brain cells form specialized links known as synapses.

Wasps: Mom doesn’t like you best

Female wasps that found a colony together show no favoritism toward their own offspring when the adults feed larvae.

Excuse me, dear, which octopus are you?

Male blue-ringed octopuses get pretty far along in their courtship before they determine whether their partner is a female.

How butterflies can eat cyanide

Some newly recognized chemical wizardry lets some Heliconius caterpillars thrive on leaves that defend themselves with cyanide.