Martin Gabriel / European (Fire) salamander {Salamandra salamandra} Bavaria, Germany

David Hall / Poison ocellate octopus (Amphioctopus mototi), warning colouration with blue ring and stripes. Pantar, Alor Archipelago, Indonesia.

Rod Williams / Harlequin ladybird (Harmonia axyridis) larva, Beverley Court Gardens, Lewisham, England, October

Philippe Clement / Cinnabar moth caterpillar (Tyria jacobaeae) feeding on leaves of Common ragwort (Jacobaea vulgaris) in summer, Belgium, July

Nick Upton / Helmeted guineafowl (Numida meleagris) peering at Soldier beetle (Cantharis rustica) with warning colouration, whilst foraging for insects in meadow. Domesticated. Near Bath, England, UK. May.

Kerstin Hinze / Yellow-bellied toad (Bombina variegata) in defensive posture showing warning colours, on dried soil with mud cracks, Weser Hills, Lower Saxony, Germany. August.

Kerstin Hinze / Yellow-bellied toad (Bombina variegata) in defensive posture showing warning colours, on dried soil with mud cracks, Weser Hills, Lower Saxony, Germany. August.

David Kjaer / Garden tiger moth (Arctia caja) Wiltshire, England, UK, July.

Robert Thompson / Zephyr eyed silkmoth (Automeris zephyria) caterpillars (third instar) feeding on a leaf, New Mexico, USA. August.

Ingo Arndt / Saddleback caterpillar (Acharia sp.) with stinging and poisonous spines and bright warning colouration, in tropical rainforest, Costa Rica.

Ingo Arndt / Saddleback caterpillar (Acharia sp.) with stinging and poisonous spines and bright warning colouration, in tropical rainforest, Costa Rica.

Ingo Arndt / Saturniid moth caterpillar with warning colouration {Syssphinx mexicana} Guanacaste, Costa Rica