Mark Moffett / Tarantula (Theraphosidae) male's palps, special mouthparts used for mating, Arizona

Pete Oxford / Domestic Cattle (Bos taurus) being herded by Chagra cowboys at a hacienda during the annual overnight cattle round-up, Andes Mountains, Ecuador

Pete Oxford / Domestic Cattle (Bos taurus) being herded by Chagra cowboys at a hacienda during the annual overnight cattle round-up, Andes Mountains, Ecuador

Pete Oxford / Domestic Cattle (Bos taurus) being herded by Chagra cowboys at a hacienda during the annual overnight cattle round-up, Andes Mountains, Ecuador

Pete Oxford / Domestic Cattle (Bos taurus) being caught and branded by Chagra cowboys at a hacienda during the annual overnight cattle round-up, Andes Mountains, Ecuador

Pete Oxford / Chagra cowboys lined up at a hacienda in the Andes Mountains for the annual overnight cattle round-up receiving orders from el patron, Ecuador

Tui De Roy / Vicuna (Vicugna vicugna) round-up, bearing the finest fiber, wild herds are corralled for shearing in ancient tradition, native community profits from highly valuable wool, Pampa Galeras National Rese...