#Anisogamic #sex predates the human race. Humans are #primates and #placental mammals. These all share the anisogamic sex mechanism inherited from ancestral mammals. Sex is essentially reproductive and reproduction is vitally important in #evolution.
#Sex is not primarily a human-centric issue. 1000s of animal & plant species exhibit reproductive sex. Humans are primates & mammals all of which share #anisogamic sex as a reproductive strategy. Sex is a very common evolved method of reproduction. It is not identity, although they may be related.
Humans & primates are mammals and share the #anisogamic sex strategy for #reproduction. Anisogamic sex is a common #evolved system. #Females make large gametes and #males make small motile #gametes. This is a binary reproductive system.
