Moles are often described as being blind. However, moles do have eyes, though they are very small and covered with skin or fur in order to protect them from dirt as they burrow underground. Their eyes can sense light and darkness, as well as movement, but provide little acuity. Yet, the poor eyesight of moles is fully compensated by the well-developed nature of their other senses. Moles are, for instance, equipped with keen hearing although their ears are also hidden amongst their fur. Their sense of touch is extremely acute as well, a small pink area of bare skin along the snout detecting changes in temperature and infinitesimal movements, while their superb sense of smell enables the voracious creatures to locate insects, earthworms, and other prey by their scent.