Just like any other sexuality that doesn’t reproduce, evolution gave some favor to those that could contribute to the tribe without the burden of child raising.
Biologists have been pondering why homosexuality is so prevalent in the animal kingdom and their explanation for this is a positive evolutionary pressure that benefits the species.
“Gay uncle hypothosis” people that don’t reproduce increase the likely hood of children surviving, by providing resources to those they love that do reproduce.
How does evolution come into play there?
Biologists have been pondering why homosexuality is so prevalent in the animal kingdom and their explanation for this is a positive evolutionary pressure that benefits the species.
There’s a good section about this on Wikipedia: https://en.wikipedia.org/wiki/Biology_and_sexual_orientation#General
“Gay uncle hypothosis” people that don’t reproduce increase the likely hood of children surviving, by providing resources to those they love that do reproduce.