Make a Comment • Email Link • Send Letter to Editor IPFS News Link • Biology, Botany and Zoology Plant Sentinels Sniff Out Danger, Turn White at the First Sign of Trouble 01-30-2011 • pcworld.com In the future, even the trees will be keeping tabs on us..... Watch Streaming Broadcast Live: LRN.fm DLive Live Chat Telegram Share this page with your friends on your favorite social network: