Rats like tunnels so our habitat has a series of tunnels. The tunnels are made out of screen so that air can constantly blow through the habitat pushing their waste to an area below the habitat with carbon, absorbent paper a desicating agent and storage. We designed a habitat for the rats who are participating in the experiment where they will use a wheel, rope and ladder. The water is pumped into the habitat through a tube which has nipples on it which they can suck. The food is carrots and other rat food adhered to a surface under an air vent which will clean up scraps. They will climb up to the upper level to eat. The air blowing through the habitat will help maintain a constant temperature, remove wastes and gasses.