It’s no secret that modern dogs are a lot different than their ancient ancestors. But did you know that their brains have changed too? A new study published in the journal Nature Communications has found that modern dogs have larger brains than their ancient ancestors. The research team studied the skulls of ancient and modern dog breeds, and compared the size of their brains. They found that modern dogs had brains that were roughly 25% larger than their ancient counterparts. This suggests that the brains of modern dogs have become larger and more complex over time. Interestingly, the researchers found that the size of a dog’s brain is linked to its breed. Larger breeds, such as German Shepherds, had larger brains than smaller breeds, such as Chihuahuas. This may be due to the fact that larger breeds require more intelligence to carry out complex tasks.

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source: Phys.org