This image shows a top view of a mouse brain.

In a Battle of Brains, Bigger Isn’t Always Better

Bigger brains don't necessarily mean greater intelligence, at least in mice and rats, a new study reports. The findings could have major implications for the future of research into learning and behavior.
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Research Team Reveals How Emotions Are Mapped in the Body

Emotions trigger strong bodily sensations and the bodily maps for each sensation are topographically different for different emotions. The sensation patterns are consistent across different cultures, suggesting sensational patterns have a biological basis, researchers say.