Column Editor replies:

Knowing the natural history of the species and genus of frog is clinically important for husbandry and nutrition, but the usefulness of identification down to sub-family or family really depends on the species. Brazaitis points out that most species can be kept under similar conditions: cool (65–75 °F) and humid, with available open water, a place to hide, nothing that creates a fungal condition in the tank, but not together with animals that have particularly toxic skin secretions.

For the veterinarian in need of a good frog identification book, Mayer recommends Reptiles, Amphibians, and Invertebrates: An Identification and Care Guide by Bartlett et al. (Barron's Educational Series, 2001).