Ingo Arndt / Slug caterpillar moth larva {Acharia nesea} Guanacaste, Costa Rica

Ingo Arndt / Slug caterpillar moth larvae mimicry {Limacodidae} Comoe NP, Ivory Coast

Ingo Arndt / Slug caterpillar moth larva mimics bug {Limacodidae} Guanacaste, Costa Rica

Ingo Arndt / Brush footed butterfly caterpillar mimics snake {Archaeoprepona demophoon} Guanacaste, Costa Rica

Ingo Arndt / Looper moth caterpillar mimics twig {Geometridae} Guanacaste, Costa Rica

Ingo Arndt / Slug moth caterpillar mimics seed pod {Perola sp} Guanacaste, Costa Rica, Central America

Ingo Arndt / Cryptic Lobster moth caterpillar mimics ant {Stauropus fagi} Germany

Ingo Arndt / Silkmoth caterpillar with eye spots to mimic snake {Oxytenis beprea} Guanacaste, Costa Rica

Ingo Arndt / Silkmoth caterpillar with eye spots to mimic snake {Oxytenis modestia} Guanacaste, Costa Rica, Central America

Krijn Trimbos / Great crested grebe (Podiceps cristatus) pair in courtship display, The Netherlands. March.

Ole Jorgen Liodden / Landscape of Lillehooksbreen glacier at Svalbard, Norway, July 2008.

Tui De Roy / Adelie penguin (Pygoscelis adeliae) courtship behaviour. Prydz Bay, near Davis Station, Vestfold Hills, Ingrid Christensen Coast, East Antarctica, November.