Fabio Liverani / Freshwater Crab (Potamon fluviatile) in a shallow stream - split perspective showing crab beneath and fluvial habitat. Foreste Casentinesi National Park, Italy, July.

Fabio Liverani / Freshwater Crab (Potamon fluviatile) brandishing claws in defensive posture. Foreste Casentinesi National Park, Italy, July.

Fabio Liverani / Freshwater Crab (Potamon fluviatile) in a shallow stream - split perspective showing crab beneath and fluvial habitat. Foreste Casentinesi National Park, Italy, July.

Fabio Liverani / Freshwater Crab (Potamon fluviatile) in a shallow stream - split perspective of underwater and habitat. Foreste Casentinesi National Park, Italy, July.

Fabio Liverani / Crested Newt (Triturus cristatus carnifex) underwater view of female swimming near surface, Traversari lake, Campigna National Park, Emilia Romagna and Tuscany regions, Italy

Fabio Liverani / Crested Newt (Triturus cristatus carnifex) split level view of female swimming near surface, Traversari lake, Campigna National Park, Emilia Romagna and Tuscany regions, Italy

Fabio Liverani / Crested Newt (Triturus cristatus carnifex) underwater view of female swimming on surface, Traversari lake, Campigna National Park, Emilia Romagna and Tuscany regions, Italy

Fabio Liverani / Traditional fishermen of Weligama, seated on long poles, fishing with rods, Sri Lanka, June 2010

Fabio Liverani / Wolf spider (Pardosa wagleri) carrying young on its back, Lake Cernika, Slovenia

Fabio Liverani / Spectacled salamander (Salamandrina terdigitata) by eggs on stick, Acqua Cheta River, Foreste Casentinesi National Park, Italy

Fabio Liverani / Close-up of Swallowtail (Papilo machaon) wings, Emilia Romagna Region, Italy

Fabio Liverani / Leaf frog {Phyllomedusa bicolor} climbing tree trunk in rainforest, Tambopata National Reserve, Amazonia, Peru