Featured above: Croc Monitor skull, Water Monitor,and Komodo Dragon
- Monitors have subpleurodont teeth, which means that thier the teeth are fused to the inside of the jaw bones.
- The teeth are placed one behind another, with replacement teeth behind and between each functional tooth also known as a polyphyodont.
- The maxillary and dentary teeth are laterally compressed (flattened sideways), sometimes with a slightly serrate cutting edge, while the premaxillary teeth are conical (having the shape of a cone).
- Normally Monitors have a dentition of somewhere around 78 premaxillary teeth, 10 maxillary and 13 dentary teeth. Replacement teeth move forward and about four replacements happens each year for a tooth.
- "A team of researchers from the University of Melbourne, Australia have revolutionized herpetology by showing that venomous lizards are actually much more widespread than thought. These scientists, under the leadership of Bryan Fry, have demonstrated that both monitor lizards (commonly kept as pets) and iguanas also produce venom. Nine types of lizard toxins are shared with snakes, but some toxins are new and yet to be investigated for medical research. Furthermore, it is now thought that venom production had, actually, a single early origin for lizards and snake and that the common ancestor to all venomous species lived about 200 million years ago. The evolution of venom would have, thus, coincided with the rapid spread of small mammals”. Monitors produce this venom by way of their mandibular glands, which produce secretions at the base of the teeth.
- To date, the toxin-producing oral glands have been identified in species of the anguimorph and iguanian lineages. It is believed that as many as 100 species of living lizards actually use venom.
I do not own these images or this information