The breeding and raising of which species takes place in a ranarium?
Workers in a ranarium oversee the breeding and rearing of tadpoles, nurturing them until they grow into adult frogs.
The mature amphibians are then released into the wild to bolster the specific frog populations. Ranariums are artificial habitats constructed to fit the environmental needs of the specific species that will live within its confines. It provides an environment in which the species can mate and develop while protected from predators, pollutants and habitat destruction. Source: EAC.edu