Some aquatic insects and spiders carry an air supply when they dive? These creatures (such as backswimmers, water boatmen, and water spiders) have tiny, water-repelling hairs that hold air bubbles next to their bodies. Oxygen diffuses into these external "lungs" and carbon dioxide diffuses out, enabling the bugs to breathe without surfacing.
Thursday, September 25, 2008
Did You Know?
Some aquatic insects and spiders carry an air supply when they dive? These creatures (such as backswimmers, water boatmen, and water spiders) have tiny, water-repelling hairs that hold air bubbles next to their bodies. Oxygen diffuses into these external "lungs" and carbon dioxide diffuses out, enabling the bugs to breathe without surfacing.
