What does a herptologist?

Answer 1

A herpetologist studies herpetology, which is the study of amphibians and reptiles. So, for example, a herpetologist might study frogs or snakes (or both, perhaps the population dynamics of snakes that eat frogs). Wikipedia has a good article on it, and can be found at http://en.wikipedia.org/wiki/Herpetology .

Answer 2

a turtle expert

Answer 3

A person who studies reptiles.