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Frog Taxi, Elwha River Restored, Finding black holes
S36 E3 / 29m 28s
Red-legged frogs cross a busy Portland highway with help from the “Frog Taxi ; Lower Elwha Klammal tribe celebrates the Elwha River’s recovery 12 years after dam removal; Scientists search for colliding black holes from inside a mysterious facility built on the windy steppe of eastern Washington.