Mexican beaded lizard debate among scientists. However, this venom has been found to contain several enzymes useful for manufacturing drugs in the treatment of diabetes, and research on the pharmacological use of its venom is ongoing. Threatened throughout its range by overcollection and habitat loss, it is a CITES protected species. The Guatemalan beaded lizard ("H. charlesbogerti" ) is one of the rarest lizards in the world, with a wild population of fewer than 200. The beaded lizards have one close living relative, the Gila monster ("H. suspectum"), as well as many extinct relatives in the Helodermatidae, whose genetic history may be traced
Abbott's crested lizard Abbott's crested lizard Abbott's crested lizard ("Gonocephalus abbotti") is a species of lizard in the Agamidae family. It is endemic to Thailand. Both the specific name, "abbotti", and the common name are in honor of American naturalist William Louis Abbott. It is also known as Abbot's anglehead lizard. Abbott's crested lizard is about in total length (including tail). The most distinctive anatomical features are the triangular bony crest on the face and the upturned nose. The colors of the dragon range from tan to green with light and dark dots on the body. The most common color is an olive