and siblings! – The future may be stranger than you think! It takes two for human reproduction, but biologists have discovered plants and animals that can rely on EITHER a partner or go it alone by self-fertilization give their offspring a better chance for longer lives when they choose to use a mate.
Sex with self in the animal and plant world is known as selfing. Offspring born from selfing share all of their genes in common with their parent, and each is capable of producing another generation of offspring. Offspring from outcrossing share 50% of each parent’s genes, and some are born males incapable of bearing offspring. Selfing populations don
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