Brothers Island Tuatara weigh in...

The tuatara at EcoWorld had their six-monthly measure and weigh in today.  These measurements are done to track their growth rates and keep an eye on their progress.
Brothers Island Tuatara are the rarest species of Tuatara with approximately 300 adults in a 1.7 ha patch of scrub on North Brothers Island.  Individuals in captivity are particularly important for education and advocacy, and at EcoWorld their health is closely monitored.
Although they were not the friendliest today their weight and length were taken and show that the dominant male has gained approximately 150g since they arrived at EcoWorld three years ago.  This small weight gain may not seem a lot but with one of the slowest growth rates of any reptile, it can take a while to get to an adult weight of approximately one kilogram.
At this stage neither tuatara has been named so if you have any ideas let us know at EcoWorld...