Why do frogs have such small cerebrum?

The cerebrum is part of the brain that controls the functions of the voluntary activity in the body. If an organism is smaller than another organism, for this case a frog and a rabbit. It means that the frog and the processes inside that body are less complex. Thus, the cerebrum do not need to be bigger than the cerebrum of a bigger organism.

Relationships are difficult because people choose to walk away instead of having to try harder.