Mudskipper Fish Picture

If there are fishes which can spends most of its time OUTSIDE of the water, then the Mudskipper or Periophthalmus modestus is the only fish that can do it. They carry water in their large gills while on land. The Mudskipper has eyes that it can blink like a human to re-wet them while on land. This type of fish is very territorial and will raise up it's back fin and defend itself on land from other Mudskipper fish. This freshwater fish can stay out of the water for up to 22-60 hours as long as it keeps its body moist. 

All this, and the fact that these fish are relatively small and easy to care for makes the Mudskipper fish a favorite pet for people with aquariums.