This study analyzes the ecological distributions of reptiles and amphibians in southern Tamaulipas of northeastern Mexico. Observations are confined to a small, though topographically complex, section of the Sierra Madre Oriental to enable a more careful definition of zonal distribution than would be possible had the same amount of fieldwork been expended in a larger geographical unit. Geology, climate, and vegetation are environmental features of primary concern to the animal ecologist, and this study discusses each of these in turn. Such information should clarify the environmental basis...

Fired Up Body Series - Bulging Biceps & Carved Triceps: Fired Up Body Series - Vol 5 & 6 Paul Martin & William O'Brien have over 27 years experience in health & fitness and finally decided to open their vast array of knowledge to the public again. After many years of people asking the same questions, a collection of tried and tested exercises and methods are now available. *William O'Brien MSc, PGCert, BSc(Hons), CertNatSci Bodybuilding and health & fitness expert, international author and writer of numerous articles Competitive bodybuilder 1993-1994 Latham's West Coast Championships -...

Fired Up Body Series - Pumped Chest & Super Shoulders: Fired Up Body Series - Vol 2 & 4 Paul Martin & William O'Brien have over 27 years experience in health & fitness and finally decided to open their vast array of knowledge to the public again. After many years of people asking the same questions, a collection of tried and tested exercises and methods are now available. *William O'Brien MSc, PGCert, BSc(Hons), CertNatSci Bodybuilding and health & fitness expert, international author and writer of numerous articles Competitive bodybuilder 1993-1994 Latham's West Coast Championships -...

Fired Up Body Series - Power Legs & Sculpted Back: Fired Up Body Series - Vol 1 & 3 Paul Martin & William O'Brien have over 27 years experience in health & fitness and finally decided to open their vast array of knowledge to the public again. After many years of people asking the same questions, a collection of tried and tested exercises and methods are now available. *William O'Brien MSc, PGCert, BSc(Hons), CertNatSci Bodybuilding and health & fitness expert, international author and writer of numerous articles Competitive bodybuilder 1993-1994 Latham's West Coast Championships -...