From Wikipedia, the free encyclopedia Christopher Frederick James Kratt (born July 19, 1969) is an American zoologist and educational nature show host. A grandson of musical-instrument manufacturer William Jacob "Bill" Kratt, he and his older brother Martin grew up in Warren Township, New Jersey, and together created children's television series Kratts' Creatures, Zoboomafoo, and Be the Creature (which aired on the National Geographic Channel and CBC), as well as Wild Kratts (which airs on PBS ...