Walk near woods or water on any spring or summer night and you will hear a bewildering (and sometimes deafening) chorus of frog, toad, and insect calls. How are these calls produced? What messages are
Walk near woods or water on any spring or summer night and you will hear a bewildering (and sometimes deafening) chorus of frog, toad, and insect calls. How are these calls produced? What messages are
A beautiful and comprehensive photographic guide that features all of the frogs of North America and includes an expert audio recording of their calls. From the olive-and-black Pig Frog, which gets
