Animal genetic resources for food and agriculture of animal genetic resources includes diversity at species, breed and within-breed level. Known are currently 8,800 different breeds of birds and mammals within 38 species used for food and agriculture. The main animal species used for food and agriculture production are cattle, sheep, goats, chickens and pigs. In the livestock world, these species are often referred to as "the big five". Some less-utilized species include the dromedary, donkey, bactrian camel, buffalo, guinea pig, horse, rabbit, yak, goose, duck, ostrich,partridge, pheasant, pigeon, and turkey. The history of animal genetic resources begins about 12,000 to 14,000 years ago. The domestication of major
Emotional support animal pit bulls and similar breeds of dogs from being accepted as emotional support animals, after a pit bull dog traveling as an emotional support animal bit two employees. Emotional support animals are allowed to travel on airplanes without muzzles or other devices that would keep them from biting staff or passengers. Another animal people get for emotional support are cats. Cats can understand when their owner has ailments such as depression or anxiety. It all depends on the owner if they want to have a special relationship with their cat. If they do they will get the emotional support that