The discovery of dozens of pregnant giant devil rays tangled in fishing nets in Mexico’s Gulf of California could mean the endangered species has an unknown birthing zone there, says a new study.

They’re called Kelvin-Helmholtz clouds, aka billow clouds or shear-gravity clouds, and they look like breaking ocean waves.

Arsenic is a deadly poison for most living things, but new research shows that microorganisms are breathing arsenic in a large area of the Pacific Ocean.