Alex Mustard / A pair of mimic octopus (Thaumoctopus mimicus) mating. The male, behind, has grabbed the female and grasps her as he tries to place his sperm sac inside her mantle with his arm. Lembeh Strait, Molucca...

Alex Mustard / A pair of mimic octopus (Thaumoctopus mimicus) mating/courtship. The smaller male, right, is riding on top of the female as he tries to place his sperm sac inside her mantle with his arm. Lembeh Strai...

Alex Mustard / Pfeffer's flamboyant cuttlefish (Metasepia pfefferi) hovers just above the seabed. The largest individuals of this species, such as this one, are not as brightly coloured as the younger ones. Lembeh S...

Alex Mustard / A veined octopus (Amphioctopus marginatus) peers out from a discarded plastic bottle. Lacking a skeleton, octopuses can squeese their bodies into the smallest spaces and through the tiniest holes. Lem...

Alex Mustard / Tropical blue ringed octopus (Hapalochlaena lunulata) free swims just above the seabed. Lembeh Strait, Molucca Sea Sulawesi, Indonesia

Alex Mustard / A young veined octopus (coconut octopus: Amphioctopus marginatus) shelters in an empty bivalve shell by pulling the two halves together with its arms. Lembeh Strait, Molucca Sea, Sulawesi, Indonesia.

Alex Mustard / Pfeffer's flamboyant cuttlefish (Metasepia pfefferi) walks across the seabed using special flaps on the underside of its body, and its outermost arms as four legs. This species rarely swims. Lembeh St...

Alex Mustard / Pfeffers's flamboyant cuttlefish (Metasepia pfefferi) displays on the seabed. Lembeh Strait, Molucca Sea, North Sulawesi, Indonesia, South East Asia

Rod Williams / Australian / Indonesian White Ibis (Threskiornis molucca) catching a pebble in its beak, to swallow and hold in its crop, Burleigh Heads, SE Queensland, Australia, March

Jouan & Rius / Australian white ibis / Indonesian white ibis(Threskiornis molucca) feeding, Kangaroo Island, South Australia, Australia

Jouan & Rius / Australian white ibis (Threskiornis molucca) Victoria, Australia

Jouan & Rius / Australian / Indonesian white ibis (Threskiornis molucca), Queensland, Australia

Steven David Miller / Australian / Indonesian white Ibis {Threskiornis molucca} balancing on dead tree branch, Mapleton, Queensland, Australia.

Steven David Miller / Australian / Indonesian White Ibis {Threskiornis molucca} balancing on dead tree branch, Mapleton, Queensland, Australia.

Steven David Miller / Australian / Indonesian White Ibis {Threskiornis molucca} standing on dead tree branch over water, Queensland, Australia.

Hanne & Jens Eriksen / Indonesian white ibis {Threskiomis molucca} Kakadu NP, Australia.

Roger Powell / Australian / Indonesian White Ibis (Threskiornis molucca) flying, Victoria, Australia

Roger Powell / Australian / Indonesian White Ibis (Threskiornis molucca) flying. Victoria, Australia

Roger Powell / Australian / Indonesian White Ibis (Threskiornis molucca) flying with nesting material. Victoria, Australia

Roger Powell / Indonesian / Australian White Ibis (Threskiornis molucca) fighting, Victoria, Australia