Before revision: Other types of fiber that will be felt further than sheep's wool are camel, llama, alpaca, Mohair goat, Cashmere goat, yak, Angora rabbit, beaver, dog, cat, human hair (think dreadlocks) .
After revision: Types of fiber that can be felted other than sheep's wool are camel, llama, alpaca, Mohair goat, Cashmere goat, yak, Angora rabbit, beaver, dog, cat, or even human hair .