08/07/2025
According to National Geographic, after mating, females sometimes strangle and consume one or more of the males from the breeding ball. This behavior isn’t just random aggression, it’s a calculated move for survival. The male provides a rich source of protein, which helps the female sustain herself during the long pregnancy when her mobility and ability to hunt are severely limited.
Researchers estimate that up to 30% of a female’s body weight goes into producing her offspring, making the nutritional boost from cannibalism especially valuable. While not every mating ends this way, sexual cannibalism in anacondas is well-documented and serves a clear biological purpose.