Ancient Zubat Evolution

This bat Pokémon is very interesting for Pokémon paleontologists because had a very clear Sexual dimorphism, the males were Brown and more small, live most of his life in the Woods hunting for feed the young, on the other hand females were lighter in colour and more large and spent much of his life in caves take the care of the young.
This species are monogamous, only had a couple throughout his life.

This this Pokémon are more related to Zubat line since it is believed that it was the evolution of the primitive Zubat.