Carpenter ants are a social species of insect that live in large colonies and work together to excavate wood and create neat tunnels and nesting areas within the wood. It is important to note that carpenter ants do not eat the wood that they excavate. These ants are generally black in color, but can be red, black or a combination of both. These ants are about 1/4 of inch in length with a queen being 3/4 of inch in length. Carpenter ants are not considered to be dangerous to people and they generally do not bite. However, carpenter ants are dangerous to the structure of homes. The tunnels that they excavate throughout the wood in a house can weaken its structural integrity and be quite expensive to repair.