Franco Banfi,Franco Banfi / Spectacled caiman (Caiman crocodilus) Rio Baia Bonita, Bonito, Mato Grosso do Sul, Brazil

Bence Mate / Head portrait of young Spectacled caiman (Caiman crocodilus) with mouth open, and plant sapling, Santa Rita, Costa Rica

Bence Mate / Head portrait of young Spectacled caiman (Caiman crocodilus) with jaw closed, Santa Rita, Costa Rica

Bence Mate / Head portrait of young Spectacled caiman (Caiman crocodilus) partially submerged in water, with reflection, Santa Rita, Costa Rica

David Pattyn / Spectacled caiman (Caiman crocodilus) portrait with head just on water surface, Pantanal, Brazil

David Pattyn / Spectacled caiman (Caiman yacare) walking on a sandy shore at the edge of a river at night, Pantanal, Brazil

Michel Roggo / Spectacled caiman (Caiman crocodylus) at water surface. Beni, Bolivia, October.

Edwin Giesbers / Spectacled Caiman {Caiman crocodilus} head above water, Costa Rica

Peter Scoones / Spectacled caiman underwater reflections (Caiman crocodilus) Pantanal, Brazil photographed during making of BBC Planet Earth series 2005

Luiz Claudio Marigo / Spectacled caiman {Caiman crocodilus} with Butterfly {Dryadula phaetusa}

Konrad Wothe / Spectacled Caiman (Caiman crocodilus) with orange butterfly perched on tip of snout, Pantanal, Mato Grosso, Brazil

Hans Christoph Kappel / Spectacled Caiman in water, Pantanal, Brazil