The stag beetle is Britain's largest insect and one of the most well-known of all the beetles. The male is easily recognised because of his mouthparts which have evolved into enormous jaws, resembling the antlers on a stag's head. Despite their fearsome appearance, these antlers are useless for biting, and are used to fight other males. It is the smaller female we need to be wary of - her tiny antlers may look less threatening but they can inflict a sharp nip!
Unfortunately, the stag beetle is now rare in Britain, mainly due to loss of suitable habitat. Read on to find out how you can help.