 Carol, do they have any interrelationship with one another, animal to animal, through this process? Yes. During the process of mating, for many species of lizards, for example, there will be tongue flicking of each other. A male especially will be sampling the chemicals that are present on the female. So the tongue flicking action is a very important means of communications from the environment to the animal in a lot of ways. In many, many ways. Thank you, Carol.