TED presents Marla Spivak who is a professor of entomology at the University of Minnesota. She talks about how honeybees have thrived for 50 million years, each colony 40 to 50,000 individuals coordinated in amazing harmony. But 70 years ago, something changed, colonies started dying. Marla Spivak reveals four reasons which are interacting with tragic consequences. This is not simply a problem because bees pollinate a third of the world’s crops. Could this incredible species be holding up a mirror for us?