Special Operations Forces Center. 1  Fleet Week Jump with the Navy Leapfrogs Experience the Navy Leapfrogs' spectacular Fleet Week jump over San Francisco alongside the team, thanks to a handy helmet cam. Profile: 353d Special Operations Group The 353rd Special Operations Group is the focal point for all U.S. Air Force special operations in the U.S. Pacific theater.
Animals which Breathe through their Skin. Some animals which live on land have a skin which is so thin that gases can easily pass through it. We say that they have a permeable skin. Earthworms and amphibians have a skin which is permeable to gases. Amphibians also have a pair of simple lungs but they are not sufficient on their own for breathing. Large animals which breathe through their skin also use blood to transport oxygen to their tissues and to bring carbon dioxide to the surface of the body.
What Makes an AmphibianA cold-blooded animal that lives both on land and in water and is able to breathe through its skin as well as, or instead of, through its lungs. Amphibians are animals that live part of their lives in water and part on land. They usually have soft, moist skin that is protected by a slippery layer of mucus. They also tend to live in moist places or near water to keep their bodies from drying out. There are three main groups of amphibians: caecilians; salamanders, newts, and mudpuppies; and frogs and toads. Are vertebrates (which means they have a backboneThe column of bones (spine) in the back of many animals.