Perch climbing is also called flying crucian carp, tree climbing fish, wood climbing fish and wood climbing perch. 179 1 year, a Danish naturalist, Daldorff, found a fish in a tree while exploring the then Danish colony in Tranquebar, and it was still alive! According to local residents, the fish can climb trees, and they often climb to palm trees up to 5 feet on the shore to suck the juice. This discovery caused a sensation in the western society at that time.