What are spiracles on a catepillar?

Spiracles are small openings located along the sides of a caterpillar's body that serve as respiratory systems. They allow air to enter the caterpillar's tracheal system, facilitating gas exchange and providing oxygen for respiration. Each segment of the caterpillar typically has a pair of spiracles, and their size and function can vary among different species. Proper functioning of spiracles is essential for the caterpillar's growth and development.