Warmth Loving Grass Snake An Ice Age Survivor
Credit: © Senckenberg/Vamberger
As evidence, the scientists from Dresden highlight the much higher genetic diversity – compared to their more southerly relatives – of the Grass Snakes in Northern Germany and Scandinavia.
“This means that we need to rethink the model of ‘southern warm refugia’ – areas of retreat in the Mediterranean region – during the Ice Ages. It is quite possible that other heat-loving animals also withstood the cold temperatures directly ‘at home’,” adds Fritz in summary.
Contacts and sources:
Senckenberg Research Institute and Natural History Museum
Carolin Kindler, Eva Graciá & Uwe Fritz (2018): Extra-Mediterranean glacial refuges in barred and common grass snakes (Natrix helvetica, N. natrix), Scientific Reportsvolume 8, Article number: 1821 (2018) doi:10.1038/s41598-018-20218-2
Source: http://www.ineffableisland.com/2018/02/warmth-loving-grass-snake-ice-age.html
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