🤔 A dog is a domesticated mammal belonging to the species Canis familiaris, a subspecies of the gray wolf (Canis lupus) that humans began selectively breeding at least 15,000–40,000 years ago, making it the first animal ever domesticated. Through thousands of years of selective breeding for different tasks—herding, hunting, guarding, companionship, and more—dogs have evolved into hundreds of distinct breeds with remarkable variation in size, shape, coat, temperament, and ability. From the tiny

2.1K views · 192 reactions | Just 50 years ago, a number of marine...