A rat is a rodent with a covering of fur (hair).
hedgehogsporcupinesechidnasthey're the only mammals I can think off
rat
the lower area(privets)
mice
Yes, it is covered by fur.
Nose, tail and paws.
mostly scales.
The skin covering that a rat does have is a cartilage that is covered by fur. The fur helps the rat keep warm. The rats that live in areas that are very cold therefore have a lot of fur.
Bodies of water that Samuel champlain covered
rabbies
Yes, the noun 'rat' is a common noun, a word for any rat of any kind, anywhere.
Their bodies are covered with fur.