Explain the feature in as much detail as possible

Gender is a societal concept invented by humans. Biological sex appears to be what the mod is referring to when they say 'gender'.

Gender carries a lot of extra baggage that you might not want. Feel free to close this ticket if you don't want this included.

It carries no extra baggage. Unlike humans, animals don't make simple things complicated and stir confusion. This is a mod about animals, not humans.