Fully sexual intercourse garter snake
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Birds do it, some bees get to do this – but how did sexual reproduction develop in the first place? A evolutionary model suggests that it can begin in a way for two cells to pool your resources when the favorable environment becomes rigid.
“The idea is that when the time becomes harder, you fuse with another cell,” says George constable At the University of York, UK. “Then you have got this big cell in which there is more possibility to survive.”
(Tagstotransite) Sex (T) Evolution