It's called the Climbing gourami. It lives in Africa, India and the Phillipines. They're primarily a freshwater fish. They can be seen gulping air at the surface of the water, which then goes through their gills or mouth when they dive beneath the surface. However, their most remarkable feat is that they can climb out of the water and walk short distances.
They have gill plates that they use as support, and use their fins and tail to push themselves! Most scientists believe that life on earth evolved out of the water, so you could say that this fish is almost like a living missing link!