Pies: Dogs aren't colorblind but their eyes don't have receptors for red

Evidence: 48 • authority: 92

Evidence: 48 • authority: 72

The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of wolves. Also called the domestic dog, it was selectively bred during the Late Pleistocene by hunter-gatherers. Dogs and the modern gray wolf share a common ancestor. Dogs were the first species to be domesticated over 14,000 years ago, before the development of agriculture, though genetic studies suggest the domestication process may have begun over 25,000 years ago. Due to their long association with humans, dogs have gained the ability to thrive on a starch-rich diet that would be inadequate for other canids. Dogs have been bred for specific behaviors, sensory abilities, and physical traits. Dog breeds va…

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Evidence: 42 • authority: 92

Evidence: 36 • authority: 72

Evidence: 36 • authority: 92

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