Yva Momatiuk & John Eastcott / Alfalfa (Medicago sativa) field, Idaho

Constantinos Petrinos / Tree medick (Medicago arborea) bushes in flower, Athens, Greece, Mediterranean, March.

Constantinos Petrinos / Tree medick (Medicago arborea) bush in flower, Tourkovounia hill, Athens, Greece, March.

Loic Poidevin / Common blue (Polyommatus icarus) male in flight and female on Alfalfa flowers, Vendee, France. July.

Richard Du Toit / South African Giraffe (Giraffa giraffa giraffa) parents and calf, KwaZulu-Natal, South Africa

Pal Hermansen / Sprouting Alfalfa seeds (Medicago sativa) against white background.

Albert Lleal / Medick (Medicago sp) fruit with spines to enable animal dispersal, magnification 20x

Albert Lleal / Medick (Medicago sp) fruit covered in spines to enable animal dispersal, magnification 17x

Eric Baccega / Common hamster (Cricetus cricetus) friendly farmer harvesting Alfalfa (Medicago sativa) for cattle food, Elsenheim, Alsace, France, May 2013

Loic Poidevin / Common Blue butterfly (Polyommatus icarus) on alfalfa (Medicago sativa) flower, Vendée, France, July.

Loic Poidevin / Dark Clouded Yellow butterfly (Colias crocea) on alfalfa (Medicago sativa) flower, Vendée, France, July.

Eric Baccega / Alfalfa or lucerne field (Medicago sativa), afavorite habitat of common hamster (Cricetus cricetus), Alsace, France, May 2013