LYNN M. STONE / Domestic dog, two Doberman Pinchers jumping over agility course hurdle, Rockford, Illinois, USA

Carol Walker / Wild horse / mustang called Mica, rounded up from Adobe Town Herd Management Area in Wyoming and adopted by photographer Carol Walker (pictured). Attending a trial obstacle clinic, designed to increas...

Carol Walker / Wild horse / mustang called Mica, rounded up from Adobe Town Herd Management Area in Wyoming and adopted by photographer Carol Walker (pictured). Attending a trial obstacle clinic, designed to increas...

Doug Gimesy / Male Conservation detector dog, from Skylos Ecology, training on obstacle course, stopping and waiting for treats from dog handler, Victoria, Australia. February, 2022. Model released.

Yves Lanceau / Domestic dog, Yorkshire Terrier leaping over high obstacle on agility course, France