New Caledonian gecko | Smithsonian’s National Zoo and Conservation Biology Institute https://nationalzoo.si.edu/animals/new-caledonian-gecko
The New Caledonian gecko is the largest known gecko species and grows to lengths of about 14 inches. When threatened, the New Caledonian gecko can detach (and later regenerate) its tail.
They are a sexually dimorphic species; males tend to have a broader head and more
