Earlier this past winter, the newborn snakes were unexpectedly discovered by Aquarium staff in the rainforest exhibit. Biologists discovered in January that 8-year-old Anna, a 10-foot adult anaconda weighing about 30 pounds, was still in the process of delivering more young, most of which were stillborn, which is quite common in parthenogenesis among vertebrate species. Initially, three babies survived, but one died of within a couple of days. Since then, the other two juveniles have thrived.

Earlier this past winter, the newborn snakes were unexpectedly discovered by Aquarium staff in the rainforest exhibit. Biologists discovered in January that 8-year-old Anna, a 10-foot adult anaconda weighing about 30 pounds, was still in the process of delivering more young, most of which were stillborn, which is quite common in parthenogenesis among vertebrate species. Initially, three babies survived, but one died of within a couple of days. Since then, the other two juveniles have thrived.