I've seen before that it's explained by the fact that in a family, it's advantageous to have men that can take the role of the dad if he were to die. The uncle still has his gene selected when his nephew survives by his care once the dad dies from a tiger attack. He would not be able to do it if he lead his own tribe and had kids.
Yes, but we remember what Darwin taught us, traits that favours survival will be selected. Evolution is not over.
How are there homosexuals around then? Wouldn’t that trait have died out?
I've seen before that it's explained by the fact that in a family, it's advantageous to have men that can take the role of the dad if he were to die. The uncle still has his gene selected when his nephew survives by his care once the dad dies from a tiger attack. He would not be able to do it if he lead his own tribe and had kids.