“It is a misconception that the differences between men’s and women’s brains are small or erratic or found only in a few extreme cases, Dr. Larry Cahill of the University of California, Irvine, wrote last year in Nature Reviews Neuroscience. Widespread regions of the cortex, the brain’s outer layer that performs much of its higher-level processing, are thicker in women. The hippocampus, where initial memories are formed, occupies a larger fraction of the female brain.”Original Article . . . 

Terence Kealey: Science Notebook

We scientists are kindly creatures, anxious to see only the best in our fellows. Consider a recent paper in Science magazine entitled “Via Freedom to Coercion: The Emergence of Costly Punishment”. The study was led by Christoph Hauert, of Harvard University.

The problem of punishment is simple. Imagine a tribe of hunter-gatherers. Imagine that all the men are brave and that they share equally in the risks of the hunt. Now imagine that one of those men is actually a creep, hiding behind a tree while the risks are being taken, and slipping out to grab a share of the food only after the beast is safely dead.

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Have fun!

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“Some 450 million years ago, sharks and humans shared a common ancestor, making sharks our distant cousins.

And according to recent research, this kinship is evident in our DNA, as at least one shark species possesses several genes that are nearly identical to those in humans.”

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