Venus the cat
Meet Venus, the cat with two faces. Although she has not been DNA tested, it is believed that Venus' odd color variations — which seem to split her face in half — are the result of chimerism, a condition where a single organism is composed of genetically distinct cells. The good news is that this condition doesn't affect Venus' health. Though the charismatic kitty has collected over a million Facebook followers, the celebrity hasn't gone to her head. She's still just your average feline.