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President Obama pledged $130 million for Alzheimer's disease research over the next two years, and an additional $26 million to support caregivers.

By James Mitchell Crow of Nature magazine Fossilized dinosaur tracks that dot a remote 80-kilometre stretch of Western Australia's coastline are under threat from a proposed natural gas facility, say paleontologists. The tracks were made by multiple species of sauropod, theropod and ornithopod dinosaurs as they walked across mud flats around 130 million years ago.