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Gophers Dropped On Mount St Helens For One Day In 1982 Left An Astonishing Impact 40 Years Later An All-Female Clone Army Is Invading The US, And It Wants To Eat Your Elm Trees What’s Under Jupiter’s Enormous Storms? Possibly A Lot More Oxygen Than Expected Did Homo Erectus Speak? Almost Certainly, Say Scientists The Unknown: A Filmmaker’s Search for Lost Connections