Humans, primates, dolphins and whales all have large brains. What differences might you expect to find?
A) An enlarged prefrontal cortex in all of these animals
B) An enlarged prefrontal cortex in the primates and enlarged parietal lobe in aquatic mammals
C) An enlarged prefrontal cortex in the aquatic mammals and an enlarged parietal lobe in the primates
D) An enlarged occipitotemporal lobe in all of these animals

Question

Quizplus · Accepted Answer

The prefrontal cortex, associated with complex cognitive behavior and decision making, is notably enlarged in primates, reflecting their sophisticated social structures and problem-solving capabilities. Aquatic mammals like dolphins and whales, on the other hand, have adaptations for spatial processing, navigation, and sensory integration, which are functions associated with the parietal lobe. This distinction reflects the different evolutionary pressures and ecological niches these groups occupy.

Humans, Primates, Dolphins and Whales All Have Large Brains