An animal's ranking on the food chain depends on where its meals place on the ladder. That puts plants on the bottom (they make all their food), polar bears on top and people somewhere between pigs and anchovies.
For the first time, scientists have figured out where we sit on the global food chain. Although humans are clearly top chefs of the world, we're not the top predator. Instead, our ranking is closer to a small, smelly fish that we put on pizzas and salads.
December 6, 2013 When bees disappeared from central China years ago, Chinese apple farmers had to pollinate by hand. Embarrassing — people doing bees' work, but then came the big discovery –- a surprise that still haunts the conservation movement. What if people outperform bees?
August 9, 2013 Technology now allows us to "hack" solutions to the biggest challenges of our time. But how far is too far? This hour, we hear from TED speakers who dare to hack the brain, the climate, and even the animal kingdom in hopes of creating a better world.
December 6, 2013 The world wants Syria's chemical arsenal destroyed. But so far, no country has offered to do the dirty work on its soil. Over the past week, an alternative has gained ground: Carry out the destruction at sea. The plan taking shape is complicated and untested, but it just might work.
December 5, 2013 Rescuers say that they've spotted at least 20 pilot whales in deeper water — a positive sign after the animals were discovered beached in a remote area of the Everglades on Tuesday.
December 5, 2013 The notoriously short night's sleep that many tired adolescents get isn't all about surging hormones and too much homework, according to a sociologist who looked at shifting sleep patterns from ages 12 to 15. Teens who report good relationships with family and schoolmates tend to sleep better.
December 4, 2013 The mass stranding has occurred in a remote area of Florida's Everglades that's only accessible by boat or helicopter. Wildlife officials are working to redirect them back out to deep water.
December 4, 2013 A meningitis outbreak at the University of California, Santa Barbara is causing the same kind of illnesses seen earlier at Princeton, but public health officials say a different bacterial strain is to blame. The UCSB health service has given preventive antibiotics to over 700 students as a precaution.
December 4, 2013 Foraging for fungi and other wild edibles has grown in popularity in the U.S. and abroad in recent years, fueled by guidebooks, Internet buzz and hype from chefs. As a result, some known mushroom hunting grounds are taking a beating.
December 4, 2013 The Department of Interior's Bureau of Ocean Energy Management admits no liability in the whistle-blower case brought by the scientist. The agency says it agreed to the settlement to avoid litigation costs.
December 3, 2013 The company's Falcon 9 booster lifted off from Cape Canaveral, Fla., carrying the satellite into a geostationary orbit.