Which animal's body part would MOST likely have the proportionally largest amount of somatosensory cortex devoted to it?

Question

Quizplus · Accepted Answer

The somatosensory cortex is a part of the brain that processes sensory information from various parts of the body. The amount of somatosensory cortex devoted to a particular body part is generally proportional to the sensitivity and functional importance of that part, rather than its size. Rats rely heavily on their whiskers for navigation and sensing their environment, making these structures highly sensitive and necessitating a large portion of the somatosensory cortex to process the information they gather.

Which Animal's Body Part Would MOST Likely Have the Proportionally