Consider the brains of species A and species B to scale.

A large brain. A small brain.
Species A Species B
Suppose that species A and species B have the same body size. Knowing this information, what can be determined from the pictures?
Species B is more intelligent and has a better memory than species A.
Species B can process sensory information more quickly than species A.
Species A is able to rationalize thoughts more effectively than species B.
Species A's brain is smaller for its body size than the brain of species B.

None of the above conclusions can be drawn solely based on the pictures provided. Brain size relative to body size is not always an accurate indicator of intelligence, memory, speed of processing sensory information, or rational thinking ability. Other factors such as brain structure, complexity, and neural connections play a significant role in determining cognitive abilities. Therefore, a larger brain does not necessarily mean a higher level of intelligence and cognitive capabilities.