Personalized Ichthyologist Funny Job Gift Baby Bib. Ichthyologist Baby Bib - Heather has occupation humor quote that says There are two kinds of people in this world and being an Ichthyologist is better than both of them. 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"