Avalanches are fast, powerful and just plain scary; and Alaska Avalanche School director Blaine Smith knows all about them. Jorge Ribas asks him three questions.
Jorge Ribas is knee-deep in the Arkansas swamp, looking for the Ivory-billed Woodpecker, a bird long considered the Holy Grail of bird watchers and ornithologists.
While on the hunt for the Ivory-billed Woodpecker in Arkansas, Jorge Ribas encounters all kinds of wildlife, including a particularly venomous critter - the Cottonmouth.
Researchers and volunteers in eastern Arkansas set out on foot and in canoes, hoping to find the elusive - and some say extinct - Ivory-billed Woodpecker. Jorge Ribas reports.
Orangutans are clever - using their hands and leaves they can make intimidating kissing sounds causing listeners to think they're bigger than they actually are.
With thousands of asteroids, comets and other near-Earth object buzzing by our planet, Jorge Ribas finds out how we can avoid the same fate as the dinosaurs.
Biologist J. Craig Venter helped crack the human genome. His next goal: create life. Jorge Ribas talks to him about the promise and perils of synthetic biology.
From a prehistoric shark to a giant squid, the Smithsonian's new Sant Ocean Hall lets visitors experience the briny deep in unexpected ways. Jorge Ribas takes a tour.
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