Elephants
Today I'm perusing Science Magazine, like you do, and I came across a little blurb about how there are actually 3 separate species of Elephants! Bollocks I say - for I distinctly remember being taught in school that that there are only 2 types: African and Indian. The way to tell them apart is that African Elephants have large floppy ears, and Indian Elephants have smaller ones.
Apparently there are two species of African Elephants: African Savanna and African Forest. The Forest species is smaller and less aggressive than the Savanna species. So, forget what you used to know and learn this: 3 types of elephants. Crazy genetics. The thrust of the Science article was that the mitochondrial DNA of the Savanna Elephants shows that it's possible for the species to cross, and it's mostly male Savanna mating with female Forrest Elephants, those horny devils.
Oh, and now we refer to Indian Elephants as Asian, because they're not limited to India. Apparently I'm not very PC either.