David Perpinan / Male Mediterranean tree frog (Hyla meridionalis) calling, showing vocal sac inflating, Barcelona, Spain, May. Filmed at night with an infrared camera.

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.

Fabio Liverani / Common tree froglet {Hyla arborea} tadpole with front and back legs, Italy

Fabio Liverani / Common tree frog {Hyla arborea} eggs, Italy

Fabio Liverani / Common tree frog {Hyla arborea} tadpole, Italy

Hans Christoph Kappel / Common tree frog calling, vocal sac inflated, Italy.

Jose B. Ruiz / Common treefrog on reeds, Spain

Fabio Liverani / Common tree frog froglet with remains of tail, Italy. Life cycle sequence 5

Fabio Liverani / Common tree frog tadpole with hind legs and front legs developing, Italy. Life cycle sequence 4

Fabio Liverani / Common tree frog {Hyla arborea} pair in amplexus Italy

Martin Gabriel / Mediterranean tree frog vocalising {Hyla meridionalis} Luberon, France, Europe