[jbotz]

Huh? Bats have most of those those, more than most other mammals their size.

[ChainOfFools]

Bats do not have the cranial size of humans; that's kind of the point. They may have a loosely comparable cranium to body mass proportion, but allometric mass scaling matters with respect to physiological adaptation, quite a lot[0].

[0] https://www.phys.ufl.edu/courses/phy3221/spring10/HaldaneRig...