Alligators take over nuclear weapons plant

An old nuclear weapons plant in the US has become home to lots of American alligators.

These reptiles are one of the best bio-indicator species in the world [a bioindicator is any species who can be used to assess the quality of the environment and how it changes over time].

Alligator Ecotoxicologist, Laura Kojima, monitors the alligators for toxic waste to assess the health of the environment. 

Find out why and how Laura tracks the alligators in this episode of BBC Earth’s Reports From the Frontline.