Question

How can you tell if a albino frogs is pregnant?

Answer 1

The “Hogben test” was simple. Collect a woman's urine and inject it, fresh and untreated, under the skin of a female Xenopus. Then, wait. If the woman ispregnant, between five and 12 hours later, the frog will produce a cluster of millimeter-sized, black-and-white spheres.