Piotr Naskrecki / Variegated Grasshopper (Zonocerus variegatus), a pest species, Ajenjua Bepo Forest Reserve, Ghana

Piotr Naskrecki / Variegated Grasshopper (Zonocerus variegatus) on flower showing warning coloration, Guinea, West Africa

Premaphotos / Variegated grasshopper (Zonocerus variegatus) showing warning colouration, in rainforest, Gambia

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...