An inference is a conclusion reached on the basis of evidence and reasoning; because of this, then probably that.
Because the silvery mole rat has small eyes (and spends most of it's time underground), it can be inferred that its vision is poor. Therefore, "The animal likely has poor vision since its eyes are so small."
Answer:
I think it's to protect and distribute the zygote.
765 wilderness areas in the U.S.