User:Jeffreyroudbai/sandbox

Respiratory Physiology:
Similar to the Lung Fish, the walking fish have closely related physiological characteristics. The Mudskipper has the ability to absorb oxygen through their moist skin, which is termed cutaneous respiration. Beneath their skin, they have capillaries that provide oxygen diffusion into blood and carbon dioxide diffusion out of blood. The mudskippers are able to breath through their mouth as well by taking in air and sealing their gill chamber with a valve.

The epaulette shark hunts in conditions that are normally unbreathable by other organisms. Because of those conditions, the shark is able to lower its blood pressure and has the ability to vasodilator vessels to pump more blood to specific regions, such as the heart and brain. The shark essentially lowers metabolism regions of the brain that are responsible for major motor movement in order to contribute that energy to sensory neurons.

The walking catfish makes use of a highly functional breathing organ, called a suprabanchial arborescent organ. It is an extension of the breathing apparatus that helps the fish's gill filaments and facilitates the intake of oxygen by providing support for a number of gill filaments that would normally collapse in the absence of water buoyancy. The suprabranchial arborescent organ functions the same way as a lung.