Cribbing, otherwise known as crib biting or windsucking is where a horse bites onto a solid object (fence or gate) and sucks back air through the gullet. It is often learned when horses are exposed for long periods to stress, or isolation (kept alone in stables, or paddocked away from other horses). Scientifically, it is known as stereotypical behaviour. Here Andrew discusses the behaviour, which can often be indicative of an outstanding school horse. | Equitation Science International - ESI