From the Olsen Twins to Human-Animal Clones
Anyway, from the Olsen twins to human-animal clones, check out the 75 doppelganger discoveries. Heck, you can even look twice: I won't tell.
Implications - You'll be seeing double when you flip through some of these. While some of the individuals or animals may not be identical, the resemblances are uncanny and should give you a hard time figuring out who's who. Think you can distinguish from one or the other? It may prove to be more challenging than it already is.