Hi tall, I am John Visser, a herpetologist residing in Namibia, with an interest in the taxonomy, distribution, calls, behaviour and reproduction of all African frog species. My current research centers on the taxonomy of Pyxicephalus in collaboration with Don Broadley and Rob Hopkins of the National Museum in Bulawayo and Liz Scott at the American Museum of Natural History. I am simultaneously working on Phrynomantis.