3 ms·
Surely if genetic variation is introduced primarily by the breeding process, any factors which have a effect against like (competing for food, less genetic vari
by reason-mr 6y ago
Surely if genetic variation is introduced primarily by the breeding process, any factors which have a effect against like (competing for food, less genetic variation), etc, are going to get selected against? I have always thought this was the reason behind human lifespans - in neolithic times, up to 33 years. Just enough time to mate and raise another individual to maturity.