A new study is adding to evidence that a popular class of pesticides can harm wild bees, like bumblebees.
Scientists found that bumblebees are nimble learners, especially when there's a sugary reward at the end. No wonder they're such good pollinators.
The number of rusty patched bumblebee colonies in the U.S. have fallen almost 87 percent in the past two decades.
The fields bend the hairs and that generates a nerve signal, scientists say.
Turns out honeybees aren't the only pollinators who need to worry about pesticides.