Dates of first domestication:

• Sheep, goat, pig: 8,000 B.C.
• Cow: 6,000 B.C.
• Horse: 4,000 B.C.
• Donkey, water buffalo, honeybee: 4,000 B.C.
• Chicken, cat, llama: 3,500 B.C.
• Silkworm: 3,000 B.C.
• Camel: 2,500 B.C.

Dogs, by far, are man’s best friend. Some estimates put them with us as early as 150,000 B.C. It’s thought that scavenging wolves grew less fearful of humans, and we found they could help with hunting and warn us of approaching enemies. “To his dog, every man is Napoleon,” wrote Aldous Huxley. “Hence the constant popularity of dogs.”