Personalized Herpetology Is Ribbiting Baby Bib. 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. Our Baby Bib is rated high in convenience and durability and with a variety of fashionable colors, your baby can be trendy. Mix and match to any outfit. 100% cotton ring spun combed heather colors are cotton-poly. Width 7.75", Length 11.75"