If you go down to the limestone karsts of Laos you could be in for a big surprise . If you may see it that is . A new species of “ dragon lizard ” has been discovered go only on a very specialised landscape in Laos . The lounge lizard is so well camouflaged that only two individuals have ever been recover .

Limestone karsts are a character of sedimentary rock formation that treat large portion of southerly China , the Philippine islands , and the famousWallacea islands . They are fragmented landscape create cryptical divots and crag and caves . These strange feature make microhabitats where some of the most threatened animals on Earth bump their household , as such they are often referred to as " arks of biodiversity " .

In the karstic massif of Khammouan Province , central Laos , researchers have describe another such beast . Two someone of a new mintage of dragon lizard have been divulge . Both grownup males , these lizards own sinful camouflage ability . The first was spotted during a bird photography trip , while the second was seen by a local guide convey holidaymaker on a ziplining experience and was afterwards caught for study .

Different images of the lizard showing the black, white and blue scales in close up views with scale bars of 10 milimeters

The combination of pattern and raised scales make this lizard exceptionally difficult to spot.Image Credit: Sitthivong, S., et al. Zoological Research, 2023 (CC BY-NC 4.0)

" Indeed , when perching on top of limestone karsts , soul of the young specie become almost unseeable in the mosaic of sharp shadower and light floater and are hard to recognize unless they start affect , " the researcher wrote in the paper .

These lounge lizard have been given the nameLaodracon carsticolaand belong to the mainland Asia subfamily Draconinae – the squad recommend the common name Khammouan Karst Dragon . This subfamily check around 256 species that all live across Asia . The lizards within this family are typically omnivores with the specie distribute across tree diagram - living and primer - living habitats .

The new species mensurate around 101 millimeters ( 3.9 inch ) long and has slate gray and bootleg scales with blue color on their pharynx and grim / gray paunch . The team say it can be told asunder from other metal money by the perceptibly swollen base of the tail ( gm and H in the figure below ) .

The soundbox surmount of the new species exhibit pronounced rough scales which could help to aid it climb the extortionate limestone pinnacles on which it lives .

The local people of the area reported that the species is most active between the minute of 9 and 11 am and 3 and 5 pm . The lizard were never ascertain anywhere other than the stony rock outcrop and the researchers believe this could be the lonesome population of these lizards in the world . The lizards are suspected to have a diet of pismire .

originally this year , another coinage was discovered for the first time in Madagascar : a gecko that habituate itsamazing camouflageto seamlessly flux into the tree trunks on which it lives .

The composition is bring out inZoological Research .