These fish are completely amphibious, and use their pectoral fins to walk around on land. They have a large gill chamber that retains water and closes tightly when they are not immersed in water.
- As their name implies, these fish use their fins to move around in a series of skips. They can also flip their muscular body to catapult themselves up to 2 feet (60 cm) into the air.
- The ability to breathe through their skin and the lining of their mouth (the mucosa) and throat (the pharynx). This is only possible when the mudskipper is wet, limiting mudskippers to humid habitats and requiring that they keep themselves moist.