Alex Mustard / Close up showing the colours and textures of the curling arms of a Crinoid on a coral reef, Anilao, Batangas marine protected area, Luzon, Philippines, Pacific Ocean.

Alex Mustard / Orange painted frogfish (Antennarius pictus) resting between the venemous spines of a Fire urchin (Asthenosoma varium), Batangas marine protected area, Luzon, Philippines. Verde Island Passages, Pacif...

Alex Mustard / Pygmy lemon gobies (Lubricogobius exiguus) pair, guarding their home in a glass bottle, Batangas marine protected area, Luzon, Philippines, Verde Island Passages, Pacific Ocean.

Alex Mustard / Coleman shrimps (Periclimenes colemani) pair, female on right, camouflaged in their Fire urchin (Asthenosoma varium) home, Batangas marine protected area, Luzon, Philippines. Verde Island Passages, Pa...

Alex Mustard / Saddleback anemonefish (Amphiprion polymnus) and a Spotted porcelain crab (Neopetrolisthes maculatus) living together in an anemone. Bitung, North Sulawesi, Indonesia, Lembeh Strait, Molucca Sea.

Alex Mustard / Pygmy seahorse (Hippocampus bargibanti) among a Sea fan (Muricella sp.) on a coral reef, Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.

Joel Sartore / Photo Ark / Javan small-toothed palm civet (Arctogalidia trivirgata trilineata) male yawning, Prigen Conservation Breeding Ark, Java, Indonesia. Controlled conditions.

Joel Sartore / Photo Ark / Red giant flying squirrel (Petaurista petaurista nigricaudata) looking round at the camera, Prigen Conservation Breeding Ark, Java, Indonesia. Controlled conditions.

Joel Sartore / Photo Ark / Sulphur crested cockatoo (Cacatua sulphurea occidentalis) raising its crest and looking around, Prigen Conservation Breeding Ark, Java, indonesia. Critically endangered. Controlled conditions.

Joel Sartore / Photo Ark / Indochinese green peafowl (Pavo muticus imperator) female looking around, Angkor Centre for Conservation of Biodiversity, Siem Reap, Cambodia. Endangered. Controlled conditions.

Joel Sartore / Photo Ark / Tenggara hill mynas (Gracula venerata) looking around, Prigen Conservation Breeding Ark, Java, Indonesia. Endangered. Controlled conditions.

Joel Sartore / Photo Ark / Javan pied myna (Gracupica jalla) looking around, Prigen Conservation Breeding Ark, Java, Indonesia. Critically endangered. Controlled conditions.