by acting as an ‘on-off switch’ or a ‘male-female switch’ at the top of the developmental cascade,” he says. In 2015, Evans—who has studied the African clawed frog for over two decades ...

by acting as an 'on-off switch' or a 'male-female switch' at the top of the developmental cascade," he says. In 2015, Evans—who has studied the African clawed frog for over two decades—led a ...

Be wary of a lethargic frog that doesn't readily accept food when it's offered, as such an animal is likely sick. Male ...

African clawed frogs used to be the best human ... and supply some 100 different genetically-altered or mutated lines of frogs for researchers around the world. Altogether, they care for a total ...