Summary #784

Humans haven’t just changed what dogs look like—we’ve altered the very structure of their brains

sciencemag.org
  • Profound insights from new study show that humans have influenced the development of dog brains -- not just their looks and physical traits.
  • Analysis of MRI brain scans from 62 purebred dogs uncovered six networks in dog brains that varied from dog to dog, depending on what they were bred for.
  • For example, police dogs had differences in the sight and smell network, and fighting dogs showed alterations in the stress response and anxiety network.
  • The study shows that we have a greater influence on the beings around us than we thought.

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