However, a limited number of species accounts contain links to external sources including pictures. The database has no commercial interest and therefore depends on contributions from volunteers. Well - that is not easy to define. Phylogenetically reptiles are not an isolated evolutionary lineage like birds. In fact, crocodiles are more closely related to birds than to lizards.
Some data come from online sources as listed on the family pages or in the species entries.
Recently we have been focusing increasingly on current journals and other publications to keep the database up to date. Users are encouraged to send us updates or reprints if they notice any omissions or errors. New Zealand J. Zool. Depending on submissions from contributors, the amount of updated material may differ. The date of the latest update is given on the Home Page headline or on the News Page .