Amphibians are cold-blooded animals that can live both in the water and on land. When we think of amphibians, frogs and toads instantly jump to mind. Usually, we think of frogs as being quite small.

Scientists found a huge “aggressive” animal with a “whoop”-like call in Namibia and discovered a new species of frog, a study said. Photo from Louis du Preez As a canopy of stars unfurled across the ...