If you haven't heard the buzz, you could be missing out. Mark Winston, a professor at Simon Fraser University heard it. So did Eugenio Angles, a farmer in Alto Beni, Bolivia.
Unfortunately, the buzz seems to be dying down. That's because its source is dying out. And, the eerie silence has more than one person raising the alarm.
"Beekeepers all around the world are noticing their bees dwindle and disappear," says the professor of apiculture and social insects.
"Over the last few years, they have been losing a third of their bees. That's pretty catastrophic."