Youtor
The Last Woolly Mammoths Mammuthus primigenius
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=Mjy9Wq2P3fA
Woolly Mammoths were herbivore grazers native to Africa, Europe, Asia and North America. They lived out their long lives, 60-80 years, on the Mammoth Steppe, a periglacial landscape with lush grass vegetation. Mammoths used their well-designed teeth to graze on grasses, leaves, trees, shrubs and moss. Theirs was not a pretty end. Mammoths from this isolated population on Wrangell Island lost the genetic lottery with DNA mutations so abundant that they eventually led to their extinction. • In a paper published in PLOS in 2017, Rebekah Rogers describes that last population of these once mighty beasts: • The last woolly mammoths to walk the Earth were so wracked with genetic disease that they lost their sense of smell, shunned company, and had a strange shiny coat. • These genetic mutations may have given the last woolly mammoths silky, shiny satin fur and let do a loss of olfactory receptors, responsible for the sense of smell, as well as substances in urine involved in social status and attracting a mate. • In any event, their end was not a pretty one or the graceful exit one might have imagined. Excess of genomic defects in a woolly mammoth on Wrangel island; Rebekah L. Rogers, Montgomery Slatkin; Published: March 2, 2017, https://doi.org/10.1371/journal.pgen....
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