Final answer:
Some species with fast hair growth rates include Angora rabbits and Yorkshire terrier dogs.
Step-by-step explanation:
The question asks about the species with the fastest hair growing rate. While humans typically have a hair growth rate of about 1/2 inch per month, some animal species have much faster hair growth. For example, the Angora rabbit has a hair growth rate of around 1 inch per month. The Yorkshire terrier breed of dogs also has a fast hair growth rate, growing up to 1 inch per month.