Kratts' Creatures is a half-hour educational children's series hosted by Chris and Martin Kratt. In this half-hour show, the Kratt brothers travel around the world and teach children about the world of animals, with help from a fifteen year old girl named Allison Baldwin and an animated anthropomorphic animal named Ttark. It was followed by an unofficial spin-off for preschoolers called Zoboomafoo in 1999, and an animated series called Wild Kratts in 2011.