Edwin Giesbers / Sword-grass moth (Xylena exsoleta) caterpillar on Field gladiolus (Gladiolus italicus). Cyprus. April.

Konrad Wothe / Gladiolus (Gladiolus palustris) flowering with meadow brown butterfly (Maniola jurtina), Upper Bavaria, Germany.

Alex Hyde / Fragrant Orchid (Gymnadenia conopsea) and Yellow Rattle (Rhinanthus sp.) flowering in ancient alpine hay meadow. Nordtirol, Austrian Alps. June.

Cyril Ruoso / Woman with baby collecting Madagascar periwinkle (Catharanthus roseus) flowers and leaves, used in herbal medicine, and containing molecules which are used in the treatment of leukemia cancer. Berenty...

Pascal Pittorino / Mediterranean tree frogs (Hyla meridionalis) mating on a branch of Quince tree (Cydonia oblonga) Var, Provence, France, April.

Pascal Pittorino / Mediterranean tree frog (Hyla meridionalis) resting on a Red rose (Rosa sp) in organic garden, Toulon, Var, Provence, France, May.

Sandra Bartocha / Silver birch (Betula pendula) with Heather (Calluna vulgaris) in full bloom, Reicherskreuzer Heide, Nature Reserve Schlaubetal, Germany, August.

Luiz Claudio Marigo / Jabiru (Jabiru mycteria) stork parents at nest with chicks with Pink Ipe tree (Tabebuia ipe / Handroanthus impetiginosus) in flower in background, Pantanal, Mato Grosso State, Western Brazil.

Paul Harcourt Davies,Paul Harcourt Davies / Martagon lily (Lilium martagonium) flower, Terminillo, Rieti, Lazio, Italy, July

Pat Tuson / Wild Perennial Lupin (Lupinus perennis) Gillespie Park Local Nature Reserve an urban ecology park with tower blocks in background, Highbury, London Borough of Islington, England UK

Claudio Contreras / Pink abalone (Haliotis corrugata) shell detail, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, January

Claudio Contreras / Pink abalone (Haliotis corrugata) shell detail, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, January