Comment by ftxbro

By the way, 'lower animals' isn't the preferred nomenclature in biology anymore. They have had a comparable amount of evolutionary time to specialize in their own things (maybe even effectively more if they have larger populations or smaller generation times), and they are more refined at some stuff while humans are more refined at other stuff (like advanced sweat pores and big brain).

Humans: lose our ancestral abilities of limb regeneration

Also humans: call our distant cousins who didn't lose those abilities as 'lower'