What does natural Black/African Ancestry hair look like, is it an afro?
Obviously there are many ways different hair types can be worn, combed, braided, cut, etc., but is natural, untouched Black/African decendent or ancestry hair an afro like in the 70s or was that styling? I imagine if it is natural, it's normally like any hair cut shorter to make it easier to manage so that's why one might see many lengths?
Kinda, but it’s also as diverse as people are. In the States we usually talk about hair types (2a-4c) which has to do with the shape of the curl. Each type has different characteristics.
https://www.carolsdaughter.com/curlhub.html
I heard once that there is more human genetic diversity within Africa than the rest of the world combined. Even without that, it’s a big place. So there are probably many many answers to your question, unless you can make it more specific.
Any natural untouched hair is a matted mess. Even brushing guides how the hair lays and what style it takes. Everyone is styling their hair, including those with afros.
I dunno, people have been doing their hair in fun ways for a looooong time. Braiding, cutting, even coloring can be done with pretty primitive tools. I would bet that even the earliest humans had some cool hairstyles.
Not too many Bushmen with afro picks. Honestly my first guess would be dreads. Probably would greatly depend on the kind of tools available since the timeframe would be extremely long.