Pete Oxford / Thoas Swallowtail (Papilio thoas) butterfly, Mindo Cloud Forest, Ecuador

Morley Read / Timelapse of a King swallowtail (Papilio thoas) butterfly caterpillar drinking water from the surface of a leaf, ), showing bird dropping camouflage, Napo Province, Ecuadorian Amazon. (non-ex)

Morley Read / King swallowtail (Papilio thoas) butterfly caterpillar, showing bird dropping camouflage, Napo Province, Ecuadorian Amazon. (non-ex)

Alex Hyde / King Swallowtail (Papilio thoas) Manu Biosphere Reserve, Amazonia, Peru. November.

Ingo Arndt / King swallowtail butterfly caterpillar in defence posture {Papilio thoas} Costa Rica - mimics bird dropping

Ingo Arndt / King swallowtail butterfly caterpillar in defence posture {Papilio thoas} Costa Rica - mimics bird dropping

Ingo Arndt / King swallowtail butterfly caterpillar mimics bird dropping {Papilio thoas} Costa Rica

Ingo Arndt / King swallowtail butterfly caterpillar mimics bird dropping {Papilio thoas} Costa Rica

Pete Oxford / Thoas Swallowtail (Papilio thoas) butterflies, Mindo Cloud Forest, Ecuador

Adrian Davies / King swallowtail (Papilio thoas). Captive. Occurs in the Americas.

Angelo Gandolfi / King swallowtail (Papilio / Heraclides thoas brasiliensis), Parana State, Iguazu, Brazil, September.

Christian Ziegler / Thoas Swallowtail (Papilio thoas) caterpillar mimicking bird dropping, Barro Colorado Island, Panama

Murray Cooper / Thoas Swallowtail (Papilio thoas) reflected in puddle, Amazon, Ecuador

Murray Cooper / Thoas Swallowtail (Papilio thoas) butterfly pair mating, Ecuador

Luiz Claudio Marigo / Pair of King / Thoas Swallowtail butterflies (Papilio thoas) mating, Pantanal of Mato Grosso, Mato Grosso State, Center-west of Brazil.

Pete Oxford / King swallowtail butterfly (Papilio thoas) captive, Amazonia, Ecuador

Ingo Arndt / Thoas Swallowtail (Papilio thoas) butterfly caterpillar mimics bird feces

Ingo Arndt / Thoas Swallowtail (Papilio thoas) butterfly caterpillar on leaf, caterpillar often mimic bird feces

Ingo Arndt / Thoas Swallowtail (Papilio thoas) butterfly caterpillar

Agustin Esmoris / Thoas Swallowtail (Papilio thoas) butterfly, Bahia Blanca, Argentina

Joel Sartore / Photo Ark / King swallowtail butterfly (Papilio thoas nealces) portrait, Selvatura Park, Costa Rica. Captive.