But the term animal in this sense is really more rhetorical than anything else. The radical islamics are humans who have been raised a certain way and then chosen to embrace that way of life and ideology. By choice they are depraved and mortally determined to foist that depravity on the rest of the world.
I like the final solution of D9's ! You have to read Humblegunners home page on Mo Hommad for a grin.
Stay Safe.......Y