These insane looking sawfish are almost extinct, and to keep the species going, the females are cloning themselves rather than waiting around for sex.

Parthenogenesis is when an egg is fertilized by another cell in the animal's own body. These cells are called polar bodies, which receive half of the chromosomes when an egg is formed, and usually get discarded in the process. But by holding on to that polar cell and using it as a fertilizer, female sawfish don't need male mates to reproduce. You go girl.

Image via Wikimedia. Image 1.Image via Wikimedia