What is an ant suture?

Normally, sutures are applied to a wound to bring the two edges together allowing the body to "knit" these edges back together. In South America and Africa, an early (and ongoing in remote areas) method of pulling wound edges together is to take an army ant soldier with large, curved pincers and hold it to the wound. The pincers are allowed to grasp the skin and contract. Once the wound is "closed", the body is pinched off. The pincers stay contracted and acts as a suture.