2017-01-24 - Pennsylvania, United States. Lynch M1, McGrath K2, Raj K3, McLaren P4, Payne K5, McCoy R4, Giger U3.
A wild-caught, 41-yr-old male Asian elephant ( Elephas maximus ) without an apparent increased bleeding tendency was consistently found to have prolonged prothrombin times (PTs, mean = 55±35 s) compared to 17 other elephants (PT=10±2 s). This elephant´s partial thromboplastin times (PTT) fell within the normal range of the other elephants (12-30 s). A prolonged PT in the presence of a normal PTT suggests disruption of the extrinsic pathway via deficiency of coagulation factor VII (FV...
2008-12-10 - Pennsylvania, United States.
Scientists have mapped out most of the genetic code of the wooly mammoth, marking the first time an extinct animal’s DNA has been decoded and raising the possibility that the creature could be cloned and return to life. Wooly mammoths, which roamed the planet 10,000 years ago, are relatives of the modern African Elephant, but were covered with thick hair, had larger tusks and smaller ears.
2008-11-22 - Pennsylvania, United States.
Scientists are a decade or two away from recreating the extinct woolly mammoth, according to a Pennsylvania State University researcher. The Colombian mammoth, the southern cousin of the woolly mammoth, roamed the eastern New Mexico plains up to 10,000 years ago. Matt Hillsman, the curator of Eastern New Mexico University’s Blackwater Draw Museum, said remains of the Colombian mammoth were found at the Black Water Draw dig site.
2008-11-20 - Pennsylvania, United States. Miller W, Drautz DI, Ratan A, Pusey B, Qi J, Lesk AM, Tomsho LP, Packard MD, Zhao F, Sher A, Tikhonov A, Raney B, Patterson N, Lindblad-Toh K, Lander ES, Knight JR, Irzyk GP, Fredrikson KM, Harkins TT, Sheridan S, Pringle T, Schuster SC., Pennsylvania State University, Center for Comparative Genomics and Bioinformatics
In 1994, two independent groups extracted DNA from several Pleistocene epoch mammoths and noted differences among individual specimens. Subsequently, DNA sequences have been published for a number of extinct species. However, such ancient DNA is often fragmented and damaged, and studies to date have typically focused on short mitochondrial sequences, never yielding more than a fraction of a per cent of any nuclear genome. Here we describe 4.17 billion bases (Gb) of sequence from several mammoth ...
2008-06-10 - Pennsylvania, United States.
A large genetic study of the extinct woolly mammoth has revealed that the species was not one large homogenous group, as scientists previously had assumed, and that it did not have much genetic diversity. "The population was split into two groups, then one of the groups died out 45,000 years ago, long before the first humans began to appear in the region," said Stephan C. Schuster, associate professor of biochemistry and molecular biology at Penn State and a leader of the research team. "This di...
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