A tapir.

The act of mating with a species other than your own may not be as ill advised or peculiar as it seems.

Mmm. Yes. *licks lips*

Recent research indicates that hybridization is not only widespread in nature but it might also spawn many more new species than previously thought.

A growing number of studies has been presented as evidence that two animal species can combine to produce a third, sexually viable species in a process known as hybrid speciation. Newly identified examples include both insects and fish.

Interspecies mating justified at last! No longer must I feel shame for the thousands of hours I'd spent watching Animal Planet while unclothed and be-sweated. No more must I hold a book over my privates when in the presence of a fish tank. Finally, I can stop feigning cat allergies and openly admit my lust for all living things! Bring me a sea slug! Bring me a gibnut! Hell, this discovery turns Noah's Ark into a swingers Love Boat. Alright, I'm off to the zoo to get me some action.