LOS ANGELES -- Commit first, then figure it out. That was one of the mantras of conservationist Doug Tompkins and his wife Kris. Their story, including the highs and lows of their biggest project, is ...
All the Latest Game Footage and Images from Nat Geo Challenge! Wild Life Discover the deadliest creatures, astonishing aquatic life, and all the wonders of this amazing planet in Nat Geo Challenge!
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