Extras
Scientists fight to revive the northern white rhino 鈥� before it鈥檚 too late.
Kenyan farmers and rangers balance danger and devotion in their fight to coexist with elephants.
Sara Fitzsimmons fights to resurrect a tree that once ruled the eastern U.S. forests.
Deborah Giles and her dog Eba track whale poop to help save endangered orcas.
The Glen Canyon Dam promised water and power 鈥� but the river had other plans.
USGS biologists tag humpback chub to monitor life in a changing Grand Canyon river.
A铆da Navarro joins the fight to revive the Colorado River Delta 鈥� and hope is flowing again.
Las Vegas defies the desert with epic engineering 鈥� but at what long-term cost?
Toxic dust, dead fish, and vanishing water 鈥� what happened to California鈥檚 inland sea?
Shane meets the beekeepers and scientists racing to save America's pollination workforce.