Personalized Herpetology Is Ribbiting White Text Toddler Full Zip Hooded Jacket. Herpetology is ribbiting text with the word ribbiting replacing the word riveting and a happy frog is a funny gift design for scientists, teachers and school students engrossed in the study of amphibians. 7.5 oz., 60/40 cotton/polyester. Jersey-lined double-needle hemmed hood. Pouch pockets for all their treasures. Coverstitched shoulders and armholes. Coverstitched rib waistband and cuffs.