Earless Monitors Resemble Dragons And Are The “Holy Grail” Of Lizard Species


Called “the Holy Grail of herpetologists” among the global community of reptile aficionados because so little is known about them, the ultra-rare lizards are native to the island of Borneo and concentrate in lowland rainforests near rivers.

Until recently, scientists and collectors had captured fewer than one hundred specimens since the species’ 1877 discovery. Their scientific name is Lanthanotus borneensis (literally, “hidden ear from Borneo,” named for its lack of external ear openings).

 

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They are seldom seen as they are active only at night.

Their unusual appearance, making them a target for the illegal wildlife trade, and sensitivity to a stable temperature of 26-28 degrees Celsius (79-82°F) underline the importance of captive breeding programs.

The Prague Zoo showcased five newly-born earless monitor lizards last October as part of a European breeding program aimed at boosting numbers of the nocturnal reptiles rarely observed in the wild.

The lizards, typically about 20 centimeters (7.87 inches) long, were not on exhibit and zoo officials hoped several more eggs would hatch in the coming month

 

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