13-11-26 The lowland tropics were once though filled with widespread species, while moderate and higher elevations were thought to contain species with more restricted distributions. That idea is turning out to be partially incorrect. Widespread species now...
13-11-25 Around 250 million years ago, at the end of the Permian period, there was a mass extinction so severe that it remains the most traumatic(创伤的) known species die-off in Earth's history. Some researchers have suggested that this extinction was tri...
13-09-11 Researchers have found evidence to suggest that climate change, rather than humans, was the main factor that drove the woolly mammoth to extinction. 研究人员发现导致猛犸象灭绝的证据,不是人类活动,而是气候变化。 The traditional view of the woolly ma...
13-03-07 A new report concludes that nearly half of Africa's wild lion populations may decline to near extinction over the next 20-40 years without urgent conservation measures. The plight of many lion populations is so bleak(阴冷的,荒凉的) , the report c...
13-02-03 Humans alone were responsible for the demise of Australia's iconic extinct native predator, the Tasmanian Tiger or thylacine(袋狼) , a new study led by the University of Adelaide has concluded. Using a new population modelling approach, the study...
12-12-29 In the period just before they went extinct, the American lions and saber-toothed cats that roamed North America in the late Pleistocene were living well off the fat of the land. That is the conclusion of the latest study of the microscopic wear pat...
12-12-24 The climate after the largest mass extinction so far 252 million years ago was cool, later very warm and then cool again. Thanks to the cooler temperatures, the diversity of marine fauna(动物群) ballooned, as paleontologists from the University of...
12-11-08 A study conducted by scientists at the Royal Botanic Gardens, Kew (UK), in collaboration with scientists in Ethiopia, reports that climate change alone could lead to the extinction of wild Arabica coffee (Coffea arabica) well before the end of this...
12-10-30 The Cretaceous Period(白垩纪) of Earth history ended with a mass extinction that wiped out numerous species, most famously the dinosaurs. A new study now finds that the structure of North American ecosystems made the extinction worse than it might...
12-10-18 A majority of Madagascar's palms face extinction due to land clearing, an environment protection group says. 一个环境保护组织称,因开垦荒地,马达加斯加岛上大部分棕榈树面临灭绝危险。 Madagascar's rain forests have shrunk to less than a quarter of the...