“Locomotion is guided chiefly by vision”, (Gibson & Crooks, 1938). This statement is understandable since vision is the key sensory system that makes adaptive legged locomotion possible by providing accurate distant environmental information about both animate and inanimate objects. The haptic system — a combination of cutaneous and kinesthetic mechanoreceptors in the skin surface, muscles, joints and tendons — can be an adequate substitute, but not a one-to-one replacement, when the visual system is compromised. Olfactory and auditory systems are also able to gather information at a distance but both these systems are generally unable to detect inanimate objects. However, species such as bats have adapted their auditory system to detect objects using echolocation.