The Fire Salamander: 1,200 Years of Genetic Isolation | SLICE EARTH | FULL DOC скачать в хорошем качестве

The Fire Salamander: 1,200 Years of Genetic Isolation | SLICE EARTH | FULL DOC

Behind the 8th-century stone walls of Oviedo, a prehistoric survivor navigates a modern grid of asphalt. Trapped since 761 AD, the Fire salamander (Salamandra salamandra bernardezi) has turned a growing city into a 1,200-year evolutionary laboratory, surviving beneath the feet of 200,000 residents. While most amphibians are bound to water, these "illustrious citizens" adapted through viviparity, giving birth to fully-formed live young to bypass the need for ponds or streams. This biological "cheat code" allowed them to claim residency in cathedral courtyards and private gardens, effectively severing their ancestral link to the natural forest. Molecular research now confirms a staggering reality: populations separated by as little as 100 meters (328 feet) have diverged into distinct genetic groups. From the cloistered individuals of the San Pelayo Monastery to the shadows of the Gothic Cathedral, witness the forensic proof of genetic drift in an animal that has survived centuries of war, bombings, and urban expansion. Documentary: The Last Urban Dragons Director: Jorge Chachero & David Álvarez Production: Documentazul (2016) #firesalamander #oviedo #evolution #geneticdrift #urbanecology #amphibians #sciencedocumentary #wildlifebiology #documentary #freedocumentary #slicedocumentary #documentaries #ecology #earth #environment #sustainability #climatechange