How do you know if you've found a genuine new species? Zoologist Mark Siddall explains.Annalee Newitz7/01/11 7:34pm181EditPromoteGo to permalink You're out in the wilderness — or maybe just your front yard — and you see a really weird animal. It's like a cross between a bat and a frog. Have you discovered a new species? If so, how would you prove it?