Yacumama is a mythical enormous serpent from Peruvian folklore. It is believed to inhabit the Amazon Rainforest and is regarded as the mother of all aquatic animals.
According to legend, the creature possesses the ability to suck up any living thing that passes within 100 steps of it. To protect themselves from this entity, local Indigenous peoples would blow on a conch horn before entering the water, believing the sound would cause the Yacumama to reveal itself if it were present.