Although amphibians have relatively high rates of road mortality in urban areas, the conditions under which traffic threatens the survival of local amphibian populations remain unclear. In the Sandhills region of North Carolina (U.S.A.), we counted living and dead amphibians along two transects (total length 165 km) established on roads in areas with varying degrees of urbanization. We found 26...

We compiled a checklist of the amphibians and reptiles of the state of Coahuila, Mexico. The list comprises 133 species (24 amphibians, 109 reptiles), representing 27 families (9 amphibians, 18 reptiles) and 65 genera (16 amphibians, 49 reptiles). Coahuila has a high richness of lizards in the genus Sceloporus. Coahuila has relatively few state endemics, but has several regional endemics. Overl...

Introduction: In amphibians, blood may act as a hematopoietic tissue. However, the knowledge concerning hematological features is scarce, there not much information that allows an analysis about possible explanations of this physiological feature. Objective: This study aimed to evaluate relationship between immature red cells (RBCs) mitosis and presence parasites in amphibians. Methods: We samp...

Amphibians include over 4,500 species within 3 major lineages---caecilians, salamanders, and anurans (Stebbins and Cohen 1995). These lineages are linked by several unique physiological traits. The most prominent is the indirect lifestyle of many amphibians--the aquatic gillbreathing larval stage and the aquatic or terrestrial lung or skin-breathing adult stage. A second feature of amphibians i...