I don't believe in reincarnation but had a phase of religious study. It's generally not a 1-to-1 mapping of you die and come back as a human. Depending on the religious school of thought "you" can spend some finite time in some afterlife (good or bad) then come back as some organism, not necessarily human. Also accounting for continued biological evolution may not be homo sapien if your "soul" comes back 1000 years later. Can't say I believe in reincarnation at all.
There is actually a hierarchy of reincarnation with enlightenment being at the top.
You can think of it like a mouse is lower form of life and if he works on his karma he can reincarnate as a racoon and then then if the racoon works on himself he can reincarnate as a monkey all the way up until enlightenment.
The animal right before reincarnation as an enlightened being is of course man.
But do you know what being is right before man?
Woman.
True story. Not even joking here. If a woman works on her karma, she supposedly can reincarnate as a man.
