Researchers at Case Western Reserve University are developing a new self-propelled robotic sleeve inspired by the earthworm. Earthworms move by contracting body segments in a wave-like motion, which ...

Scientists have known for decades that some animals use the Earth's magnetic field to help them navigate, kind of like an internal GPS. How they do it, though, remains unclear. NPR's Nate Rott reports ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers at Case Western Reserve University are developing a new self-propelled robotic sleeve inspired by the earthworm.

Scientists have known for decades that some animals use the Earth's magnetic field to help them navigate. Think of it as an internal GPS. But how it all works remains unclear. NPR's Nate Rott reports ...

Scientists have known for decades that many animals use the Earth's magnetic field for navigation. It's less clear how they do it. A new study suggests earthworms may be a good way to figure it out.