In addition to being loyal companions over the millennia, dogs have been trained to do everything from hunting down food to attacking strangers.
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In battle, Greeks used “fire helmets,” specially trained dogs that carried pots of burning oil on their heads to scare enemy horses. Celtic catch dogs were taught to chomp onto the noses of oncoming equines.
In our time, working dogs sniff out explosives and contraband and help people with disabilities. But as more canines are bred as bio-jewelry and emblems of conspicuous consumption, valuable traits such as curiosity, boldness and playfulness are disappearing. More than 400 genetic ailments have been found in U.S. purebred pooches.
I spoke with Mark Derr, author of “How the Dog Became the Dog: From Wolves to Our Best Friends,” on the following topics:
1. Big Game Hunters
2. Genetic Changes
3. Ratters & Hunters
4. Show-Off Dogs
5. Individual Personalities
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