A group of fishermen were intrigued to find an already dead anaconda floating belly up in the river. They tried to figure out what might have happened to the animal, but could not come to a conclusion.

The animal was seen swimming and aroused the curiosity of fishermen – Photo: Biologisa Henrique/Reproduction/ND

The video was sent to biologist Enrique, a snake specialist. The men argued that she had no gunshot marks that could indicate human death and that she had a swelling in her neck.

According to the biologist, death as a result of human actions is one of the most likely hypotheses. This is because the anaconda usually does not choke on something small, as it is capable of digesting large prey.

In addition to the possibility of being shot, the animal could also have been caught in a fishing net and drowned, as it needs to rise to the surface to breathe.

Watch the full video in which the biologist solves the mystery of the anaconda: