Hmmm...let me guess...Somebody planted magical seeds in the ground and they grew into a bunch of Zetsus and 1 of the Zetsu went into the 晓组织 and he was called Zetsu?
Zetsu was a mutant plant experiment gone wrong!Nah just joking! 或者 was i? But no one even knows where Zetsu came from, but he has a 分裂, 拆分 personality and is the Akatsuki's spy. Also i should mention that Zetsu is a cannibal *shivers*, in other words he eats humans and that's what the venus fly trap is for (i hate cannibal, and that's why i'm not to fond of Zetsu)
Zetsu is the 晓组织 spy. He doesnt have a partner 或者 ally like the other memebers do. He's half plant as 你 can see. The black and white side of his face are his two actual sides. The black side is his evil and agressive side, while his white side is his normal side. He usually "talks to himself", talking each side to each side with himself. Actually, he even argues with himself! Zetsu also eats people. After the death of his opponent 或者 victom, he eats them. Yep. He EATS them. It's not as scary as 你 think... Well, yah, maybe it is... From other websites, Zetsu is comfirmed to be from the 草 village.
