Indulge your inner explorer and learn where you are likely to find bones and how to identify animals based on their skull and limb shape and size, dental patterns, horns and beaks. This Duraguide® teaches how to identify the skulls and bones of common North American mammals, birds, reptiles, amphibians and fishes and also features a 20 in. (50 cm) ruler and step-by-step instructions for preparing and preserving specimens. This lightweight, pocket-sized folding guide is an excellent source of portable information and ideal for field use by novices and experts alike.