The oldest known mammal species to evolve on Earth was a small shrew-like creature known as Juramaia sinensis which lived about 160 million years ago. Descended testicles are a mammalian trait thought to have been present in the earliest mammal species. So it's quite likely that anything 160 million years old is literally old as balls.
@InvaderXan how much time did you spend researching this post?
About half an hour. Worth it though.
@InvaderXan hi dad
@InvaderXan (talking to the small shrew-like creature)
So, to be a mammal specie you have to have balls, literally....😂
Sunbeam City is a Libertarian Socialist solarpunk instance. It is ran democratically by a cooperative of like-minded individuals.