"Bees are vital to the pollination and production of our fruits and vegetables ... unfortunately, they're all in trouble" — Marla Spivak James Duncan Davidson/TED hide caption

itoggle caption James Duncan Davidson/TED

Aerial view of Biosphere 2, where Jane Poynter lived for two years and 20 minutes. Courtesy of Jane Poynter hide caption

itoggle caption Courtesy of Jane Poynter

"In habitats that are pretty much untouched, the sound is organized and structured in such a way so that each critter establishes its own bandwidth" — Bernie Kraus James Duncan Davidson/TED hide caption

itoggle caption James Duncan Davidson/TED

An Iraqi civilian walks through the vault of the National Museum in Baghdad, Iraq, on April 12, 2003. Looters opened the museum vault, went on a rampage breaking ancient artifacts stored there by museum authorities before the war started. Jerome Delay/AP hide caption

itoggle caption Jerome Delay/AP

"I'm really looking forward to a time when generations after us look back at us and say how ridiculous it was that humans were driving cars" — Sebastian Thrun James Duncan Davidson/TED hide caption

itoggle caption James Duncan Davidson/TED

"Everybody ... could live an extra five, 10, 20 years just because of this one thing" — Richard Resnick Mike Ritter/TED hide caption

itoggle caption Mike Ritter/TED