1a : a place equipped for experimental study in a science or for testing and analysis a research laboratory; broadly : a place providing opportunity for experimentation, observation, or practice in a field of studyb : a place like a laboratory for testing, experimentation, or practice That area is a laboratory for cultivating the germ of terrorism.
Bellowing. Bellowing is a common sound in the alligator world, and is prevalent in both Chinese and American alligators -- the only types of alligators that still exist. These husky, guttural and very intense sounds are often used as a means of expressing a specific locale.ome species of alligators are capable of communicating even before birth -- think the American alligator (Alligator mississippiensis), to be specific. These reptiles are the most talkative crocodilian species, and begin producing high complaining noises while living within the eggs.
What sounds do kangaroos make? A: Kangaroos make a variety of sounds, including hissing, grunting and coughing, and females may make a clicking sound when communicating with joeys. Kangaroos make noises when warning others about predators or if they sense danger. They also stomp their feet to warn other kangaroos that something is wrong.