Bees and flowers communicate in colors, scents and shapes. Now scientists have discovered that bumblebees can also sense flowers' electric fields. This sixth sense helps them remember and recognize nectar-rich blooms while foraging.
One wildlife biologist is tracking the planet's rarest animals, in hopes of understanding why they’re scarce and what it means for all species. We explore his research, and how technology is helping catalog the world's biodiversity.
Small amounts of the drugs that people take end up in wastewater and then in streams and rivers. It's usually not enough to harm the health of humans who swim in or drink the water. But there is growing evidence that pharmaceuticals in wastewater may affect wildlife.
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