Helminthology Asmund Rudolphi, Otto Friedrich Bernhard von Linstow and Johann Gottfried Bremser started systematic scientific studies of the subject. The Japanese parasitologist Satyu Yamaguti was one of the most active helminthologists of the 20th century; he wrote the six-volume "Systema Helminthum". Helminthology Helminthology is the study of parasitic worms (helminths), while helminthiasis describes the medical condition of being infected with helminths. Helminthology studies the taxonomy of helminths and their effects on their hosts. The origin of the first compound of the word is the Greek "ἕλμινς" - helmins, meaning "worm". In the 18th and early 19th century there was wave of
Kratts' Creatures with 50 episodes produced in total, with reruns continuing to air until June 9, 2000. Due to its popularity, the show inspired an unofficial spinoff, "Zoboomafoo," also created by the Kratts, which premiered on January 25, 1999. Kratts' Creatures Kratts' Creatures is a half-hour children's television series that originally ran on PTV. The first in a series of programs produced by the Kratt Brothers, Chris and Martin Kratt, "Kratts' Creatures" was made to be the first wildlife show aimed specifically towards young children. It featured the Brothers Kratt as they traveled around the world exploring different animals and their habitats,