Tag Archives: population

A cray-active solution for cancer research

… new environmental conditions such as diet, population density or temperature. “Epigenetic factors may also influence cancer risk and play a role in the clinical development of the disease,” says Lyko. For example, colleagues at DKFZ have recently shown that epigenetics plays a major role in medulloblastoma, an aggressive brain tumour in children (DKFZ PM Nr. 30/2014). Lyko explains that, “in order to understand the basics of epigenetics, we need models. The usual mouse and rat …

Frodo’s basement: Secret chamber found where hobbit humans lived 

… long after other early human species, including the Neanderthals, had disappeared. Yet controversy remains over whether the hobbit is a separate species, or simply a population of unusually small Homo sapiens, at least one of whom had some form of disease that impaired brain development. This, sceptical researchers say, explains why the single hobbit skull found to date had a brain no larger than a chimpanzee. Hidden entrance More bones would finally lay the debate to rest, but so far searches …

Climate change raises cat threat 

… would have. Under one grim 2070 model, climate change could widen the range of areas suitable for feral cats, bringing them closer to conservation hotspots in new places like the central North Island, and the top and central areas of the South Island. Dr Aguilar’s previous work has demonstrated links between human population density, economic deprivation and the occurrence of stray cats, showing that a dense population generally indicated stray cats would be present. In Auckland, an …

World’s most endangered big cat may be on the rebound 

By Emily J. Gertz, TakePart | September 1, 2015 The number of Amur leopards has more than doubled since hitting a low in 2007, researchers in Russia and China say. An extremely rare spotted cat could be stepping back from the brink of extinction. The Amur leopard appears to have doubled its wild population in the past several years from fewer than 40 adults in 2007 to 80 or more in 2014 and repopulated some of its historic range in China, according to a joint announcement by Russian and …

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