The Chilean devil ray is one heck of a swimmer—the fish make surprisingly fast and deep dives into the Atlantic Ocean, a new study says.
Caterpillars that eat roadside plants rich with salt evolve into abnormal butterflies with large muscles and eyes, a new study says.
A newfound species of lungless salamander from Arkansas has escaped scientists’ attention by looking like a juvenile of another species—until now.
A now-extinct family of cockroaches ate a diet that was high in dinosaur dung, according to a new study.
An influx of emus is starting to take over a town in Queensland, Australia.
Elvis the beagle is helping North American zoo keepers figure out if their polar bears are pregnant or not.
A team with National Geographic’s Crittercam recently installed two cameras on American bison for the first time—find out how they did it.