The anaconda snake is non-venomous, it is the largest species of snakes in existence, more than 9 meters long. In the Xiqi River, you can submerge your head in the water for a long time or keep your head above the water.

The anaconda has aestivation, which may be related to the drying of the waters where it lives , Anaconda snakes can be buried in the mud, so as to reduce the evaporation of water in the body. It mainly preys on terrestrial animals such as mammals and birds, and in some places it also devours alligators.