variation

From Great Dane to Tiny Terrier, A Mutation Creates Enormous Variation in Dog Sizes

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From chihuahuas to great Danes, dogs differ more in size than any other mammal species on the planet. A mutation behind such variation has been traced to an unexpected source: ancient wolves. The mutation lies near a gene called IGF1, which researchers flagged 15 years ago as having a major role in the size variation of … Read more

More Than 10,000 Studies Debunk Outdated Biological ‘Explanation’ For Male Success

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From world politics to top-ranking businesses, to the upper rungs of academia and even Nobel laureates, men outnumber women by a significant margin. One claim to such disparity has been attributed to biology. The idea there’s some kind of ‘superdiversity’ among male brains has been repeatedly cited in the scientific literature in recent decades; but according … Read more