Pies: A dog's sense of smell is so powerful that they can detect a drop of blood in a large swimming pool

Evidence: 58 • 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…

Evidence: 42 • authority: 80

Brand Sense: How to Build Powerful Brands Through Touch, Taste, Smell, Sight and Sound

Evidence: 42 • authority: 80

Smell proves powerful sense for birds. New studies highlight underappreciated role of avian olfaction

Evidence: 42 • authority: 80

New test can detect eight types of cancer in a drop of blood

Evidence: 42 • authority: 80

AI is acquiring a sense of smell that can detect illnesses in human breath

Evidence: 42 • authority: 80

Why that ‘clean swimming pool’ smell is actually bad for your health

Evidence: — • authority: 38