Excellent report on the different biological aspects of Dogs Great Job THE DOG Domestic dog, carnivorous mammal, generally considered the first domesticated animal. The domesticated dog has coexisted with human beings as a working partner and household pet in all eras and cultures since the days of the cave dwellers. It is generally believed that the direct ancestor of the domestic dog is the wolf, originally found throughout Europe, Asia, and North America. Remains of …showed first 75 words of 3707 total…

…showed last 75 words of 3707 total…A dog in an aggressive posture shapes and moves its body to make it look bigger: it elongates, it's hair gets straight up, etc. To exhibit submission a dog often lies itself on the floor and with its tail between its legs it shows its genitals. When a dog tries to play with another it lies in a sphinx position, or it 'dances' around the other dog, or it gently bites the other's tail, etc.