In the Binglang River in Yunnan, there is a kind of fish that can climb trees. The banks of the Binglang River are endless primeval jungles. Whenever the river rises at the turn of spring and summer and the water overflows the forests on both banks, this fish climbs up from the water along the trunk and hangs on the branches, just like a string of large green and black peppers. At this time, the fisherman approached quietly, put two pockets under it, and then knocked on the tree with a long pole, and the fish were arrested one after another.

This kind of fish has many names: it is called "bighead fish" because its head is particularly large, and it is also called "stone flat" and "stone paste" because it lives in the crevice of the bottom stone for a long time and its head is flat. It has a green back and a yellow chest, a big head and a small tail, and belongs to the family Lepidoptera. This kind of fish attracts its body to a stone or tree by a breast sucker, and can move its body left and right, up and down. In order to make this special family survive from generation to generation, laying eggs on trees has become their "trick" to preserve species. As the temperature rises, the river continues to rise, and the roe and grandson of the stone flatfish break their eggs and come out.

The flatfish feed on insects and mosses floating in the water or attached to rocks. Its meat is tender, there is no velvet thorn, and it is delicious, so it is a delicacy on people's table.