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Cold-Climate Lizards May Face Extinction in 60 Years, Study Says

Researchers at Nottingham Trent University studied the evolved reproductive strategies of three groups of diverse South American lizards: the live-bearing (viviparous) iguanian Phymaturus, the egg-laying (oviparous) Liolaemus, and Stenocercus, a lizard that evolved both strategies of reproduction. In order to determine how these various reproduction strategies affect the lizards' chances of survival in the face of human-caused climate change, scientists conducted a computational model of current climate change and compared it against real data on lifestyle habits for the species now.  They found that live-bearing species are being displaced at higher rates than egg-laying lizards at a rate of .3 percent of their current geographical rate each year, pushing them toward the brink of extinction within six decades. The predominant factor? Temperature increase.  Read more....

 

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