Some insects also have a measure of dynamic stability in their gates. However, they typically use statically stable gates. Most insects have six legs, sometimes more, and sometimes a lot more. The statically stable gate uses these other legs to make certain that the insect is always stable while it is moving. Unlike in dynamic stability where it is constantly adjusting its body and legs to maintain stability, statically stable is always stable because at least three of the legs are always kept on the ground in a configuration that will keep the insect from falling. This is similar to the stability that is attained by the tripod stand for a camera or of a stool. There are two primary gaits that insects use for walking. These are the metochronal wave and the tripod gate. These are really just extreme ends of a continuum of gates. The metochronal wave gate is used for slower walking speeds and the tripod gate is used for faster speeds. The insect can also mix them to walk at different speeds in between the two types of gaits. Figure 2 shows a timeline that displays both of the gates. The metachronal wave gait is the slowest of the gates for an insect. It's seen when a "wave" of leg movements ripples down each side of the insect. A good example of this type of gait is a caterpillar. The tripod gait is the fastest of the gaits. In it, the insect always has two legs on the ground on one side and one leg on the ground on the other side such that it forms a tripod. This can be seen in Figure 3. So three of the legs are on the ground and moving backwards while the other three legs are raised and moving forward. As the feet on the ground are moved back, this causes the body of the insect to move forward. Then when the raised legs are all the way forward they lower to make contact, and the legs that were down are raised and the whole pattern is repeated.