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I'm no biologist but have been wondering about this: A vast majority of animals and ofcourse humans need a male and a female to reproduce. Ofcourse, potential arises that there might be problems in reproduction (for example, diseases passed on by one of the parents, required effort etc).
On the other hand, a very few animals can have asexual reproduction. I'd think that would be a LOT more efficent in terms of reproduction , for one, no need for a mate and plus 100 percent of kids will be child-bearing instead of 50 percent.
So considering asexual production to be more efficent, as life evolved on our planet, I wonder how did it lose out to hetrosexuality?
PS. Please don't bring religion in the discussion since this is posted in the Science forum.
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