Monitor lizard

A lizard in the family Varanidae, native to Africa, Asia, and Oceania. Monitor lizards have elongated bodies, strong limbs, long necks, and forked tongues.

Varanidae: A family of lizards that includes monitor lizards and their extinct relatives. This family is the taxonomic group that contains every living monitor lizard.
Tongue-flicking: The repeated extension and retraction of a tongue to collect chemical particles from the surroundings. Monitor lizards tongue-flick to sample scent trails while investigating prey and territory.
Komodo dragon: The largest living lizard, a monitor species native to several Indonesian islands. This iconic species illustrates the size and predatory capacity possible within Varanidae.
Iguania: A major group of lizards that includes iguanas, chameleons, and agamids. Iguanians are a major lizard lineage distinct from monitor lizards within Squamata.
Varanid phylogeny: The evolutionary relationships among living and extinct members of the monitor-lizard family. Molecular and fossil evidence continue to revise how monitor lineages are related.
Squamata: The reptile order containing lizards, snakes, and worm lizards. Monitor lizards belong to this broader order of scaled reptiles.
Chemical ecology: The study of how chemical signals shape interactions among organisms and their environments. Scent cues help monitor lizards locate food and interpret their surroundings.
Asian water monitor: A large semiaquatic monitor lizard native to South and Southeast Asia. Its adaptability brings monitor lizards into close contact with people in urban waterways.
Teiidae: A family of New World lizards that includes tegus and whiptails. Tegus can resemble monitors in size and active foraging but belong to a different family.
Island biogeography: The study of how island size, isolation, and history shape species distributions. Island isolation helped produce distinctive monitor species and raises questions about their dispersal.

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