1. Temperature of a dog ranges from 37.2-39.2 degrees celsius
3. The toe above a dogs front paw is called a Vestigal Dewclaw (Not sure on the spelling!!)
4. The name Doberman came from the creator of the breed - someone Doberman.
6. Domestic dogs have 78 chromosomes arranged in pairs

Theres a few answers, not sure on the others!