Biologists describe animals with such teeth as having heterodont dentition. By contrast, the teeth of homodont animals, such as iguanas, are all the same shape. As with some carnivores that have teeth to aid in prey capture, some omnivores have teeth that help them to obtain, rather than process, their food. Rodents are famous for their long, continuously growing incisors, which they use to chew through husks, shells and wood.
Area 51 is located in the southern portion of Nevada in the western United States, 83 miles (134 km) north-northwest of Las Vegas. Situated at its center, on the southern shore of Groom Lake, is a large military airfield.
Since Area 51 is effectively a wildlife preserve, it was important to create warning devices that could not easily be tripped by a passing animal. One theory held by observers is that the sensors can detect the scent of the passing creature (the sensors detect an ammonia signature).nowingly flying into R-4808N is a much more serious offense, and pilots can face a court martial, dishonorable discharge and time in prison as a result. The military classifies Area 51 as a Military Operating Area (MOA).