The ant has a pair of eyes which are made up of many smaller eyes crowded together. They are called compound eyes. The antennae of most ants contain organs which they use not only for touch, but also for their sense of smell. The head of the ant is armed with a pair of large, strong jaws. The jaws are hinged so that they open and shut sideways like a pair of scissors. Adult ants cannot chew and swallow solid foods. Instead they swallow the juice which they squeeze from bits of food. They throw away the dry part that is left over. Like all insects, ants have six legs fastened to their thorax. Each leg has three joints. The last joint contains combs which the ant uses to clean itself. The legs of the ant are so strong and quick that it can move very rapidly. If a man could run as fast for his size as an ant can, he could outrun the fastest horse! The abdomen of the ant contains two stomachs. One stomach holds the food for itself and second stomach is for food to be shared with other ants. When a Fire Ant (Solenopsis Geminata) stings or bites, it produces a burning sensation like fire, inspiring its name as a Fire Ant. Like all insects, ants have a hard outer covering called the exoskeleton. Because this covering cannot stretch, ants can grow only by molting this skin several times. Ants have four distinct growing stages, the egg, larva, pupa and the adult. This development cycle is called 'Complete Metamorphosis.' Ants are actually classified as a special group of wasps. (Hymenoptera Formicidae) There are over 14000 known species of ants. Each ant colony has at least one or more egg laying females called queens. Their single purpose is to lay eggs which the worker ants raise into adults. Worker ants are sterile, wingless females which forage for food, rear the young, and defend the nest from intruders. Ants are tidy insects. Some worker ants are given the job to clean debris from the nest and deposit it outside in its own special garbage dump! Each colony of ants has its own characteristic smell. In this way, intruders can be recognized immediately! Many ants such as the common Red species are all armed with a sting and use this in defense of the nest. The common Black Ants and Wood Ants have no sting, but they can squirt an irritating spray of formic acid which protects the nest from other ant intruders. The Slave-Maker Ant (Polyergus Rufescens) raids the nests of other ants and steals their pupae. When these new ants hatch, they work as slaves within the colony. The worker ants tend to keep the eggs and larvae in clumps of individuals arranged according to ages. At night the worker ants move the eggs and larvae deep into the nest to protect them from the cold. During the daytime, the worker ants move the eggs and larvae of the colony to the top of the nest so that they can be warmer. Weaver Ants (Oecophylla Species) make their nests by weaving living leaves together with jets of silk squirted out by the larvae. If a worker ant has found a good source for food, it leaves a scent trail for the other ants in the colony to follow. Carpenter Ants (Campanotus Species) are so called because they excavate their nests in the trunks of trees and logs. In South Africa, Army Ants (Ecitron Burchelli) are always on the move. They march in columns carrying their eggs and larvae with them. The raiding party of the Army Ant has been known to stretch as long as 330 feet and 25 feet wide. The underground nests of ants can be several feet deep, with tunnels and chambers on many levels. When the Slow Ant (Leptothorax Species) finds a good source of food, he does not leave a scent trail, instead they form lines following right behind each other. Wood Ants (Formica Species) make their protective mounds above their nests out of pine needles. Ants have wings only when they are mating. After mating the male ant soon dies. The queen ant sheds her wings which provides nutrients for her eggs. The Army Ant (Ecitron Burchelli) of South America, can have as many as 700,000 members in its colony. The Army Ant (Ecitron Burchelli) sends out swarm raids to hunt insects and even small animals. The Leaf Cutter Ant (Atta Species) cuts out pieces of leaves which they take back to their nests. They chew them into a pulp and a special fungus grows on it which they eat. Harvester Ants (Messor Species) forage for seeds which they take back and store in their nests. In this way the seeds get dispersed and some survive to grow. Many ant species like the common Yellow Ant (Lasius Flavus) make protective mounds of earth above their underground nests.