This video says about itself:
7 February 2017
In Ankarana National Park, Antsiranana Province, north Madagascar, researchers discovered a new species of fish-scale gecko: Geckolepis megalepis. To escape from predators, the gecko can lose its scales at the slightest touch. The scales grow back, scar-free, in a matter of weeks.
From Science News:
Detachable scales turn this gecko into an escape artist
Newly discovered lizard leaves predators with a mouth full of the largest scales yet
By Elizabeth Eaton
7:00am, March 17, 2017
Large, detachable scales make a newly discovered species of gecko a tough catch. When a predator grabs hold, Madagascar’s Geckolepis megalepis strips down and slips away, looking more like slimy pink Silly Putty than a rugged lizard.
All species of Geckolepis geckos have tear-off scales that regrow within a few weeks, but G. megalepis boasts the largest. Some of its scales reach nearly 6 millimeters long. Mark Scherz, a herpetologist and taxonomist at Ludwig Maximilian University of Munich, and colleagues describe the new species February 7 in PeerJ.
The hardness and density of the oversized scales may help the gecko to escape being dinner, Scherz says. Attacking animals probably get their claws or teeth stuck on the scales while G. megalepis contracts its muscles, loosening the connection between the scales and the translucent tissue underneath. The predator is left with a mouthful of armor, but no meat. “It’s almost ridiculous,” Scherz says, “how easy it is for these geckos to lose their scales.”
Some places are so rich in natural wonders, so extraordinary, so important for people, and yet so threatened, that we must pull out all the stops to save them. Madagascar, the “island continent”, with its flora and fauna so unlike any other, is one such place. Tsitongambarika, then, is even more special: forest unique even within Madagascar, with bizarre-looking Ground-rollers, local species of lemur, and species known only from this site. It is no wonder that this highly-threatened Important Bird & Biodiversity Area (IBA) – the only remaining area in the south of the country that supports significant areas of lowland rainforest, but with unprecedented rates of deforestation – has inspired a magnificent donation from Birdfair.
Birdfair, the annual British celebration of birdwatching, raised an incredible £350,000 last year at its 2016 event, and now this special funding is now going to the protection of IBAs in danger in Africa. This money will not only go towards the immediate protection of Tsitongambarika, through supporting national BirdLife Partner, Asity Madagascar, and local communities; but the future of other threatened sites in Africa will be bettered thanks to capacity building of other BirdLife Partners to advocate their protection, and to a new awards scheme.