Standing in a park across the street from Western Market in Northwest D.C., John Caffo and Jac Winters scrutinized a series of holes next to the concrete sidewalk. This video is no longer available.

Often feared as dangerous, puff adders may be unsung agricultural heroes—capable of devouring rodents at extraordinary rates just when farmers need it most. By harnessing their natural abundance, ...

Let’s talk about a group of reptiles that perform great services to us and the environment in terms of rodent and vermin control. Probably more than any others, these reptiles evoke emotions ranging ...