Oxygen's challenge to early life

The conventional view of the history of the Earth is that the oceans became oxygen-rich to approximately the degree they are today in the Late Ediacaran Period (about 600 million years ago) after staying relatively oxygen-poor ...

Lynxes from Estonia to repopulate Poland: WWF

The WWF conservation group said Wednesday it planned to transfer lynxes from Estonia, where the wild felines are thriving, to Poland where the species risks disappearing.

Mystery disease kills rare Kazakh antelopes

More than 200 female saiga antelopes have died in Kazakhstan from an unknown disease, further threatening a species already at risk of extinction from poaching and habitat loss, officials said Thursday.

Brazil fire burns huge collection of dead snakes

(AP) -- A fire in Brazil destroyed what may be the world's largest scientific collection of dead snakes, spiders and scorpions that served as the main source for research on many species, scientists said Sunday.

Early humans caused extinction of Australia's giant animals

(PhysOrg.com) -- The mass extinction of Australia's giant animals, such as huge kangaroos and rhinoceros-sized wombats, might have been more rapid than previously thought, according to new research from the University of ...

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