Birds in captivity lose hippocampal mass

(PhysOrg.com) -- Being in captivity for just a few weeks can reduce the volume of the hippocampus by as much as 23 percent, according to a new Cornell study.

Not just humans: Bees and chimps can also pass on their skills

Bumblebees and chimpanzees can learn skills from their peers so complicated that they could never have mastered them on their own, an ability previously thought to be unique to humans, two studies said on Wednesday.

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