Alex Mustard / Spaghetti garden eels (Gorgasia maculata) stretching up out of their burrows on a rubble slope, with Mysiid shrimp swimming around their bodies near the seabed. Dumaguete, Dauin, Negros, Philippines....

Alex Mustard / Portrait of Morgan's coral hermit crab (Paguritta morgani) looking out of its burrow in a hard coral colony. These hermit crabs are sedentary, remaining in their burrows, rather than carrying arou...

Alex Mustard / Interaction, possibly predation, between two polychaete worms (Chloeia sp). Dauin, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Bohol Sea, tropical west Pacific Ocean.

Alex Mustard / Bue ring octopus (Hapalochlaena lunulata) walking across the sea bed. Dauin, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Bohol Sea, tropical west Pacific Ocean.

Alex Mustard / Nudibranch (Nembrotha milleri) on the seabed. Dauin, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Bohol Sea, tropical west Pacific Ocean.

Alex Mustard / Blue ring octopus (Hapalochlaena lunulata) walks across the sea bed. Dauin, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Bohol Sea, tropical west Pacific Ocean.

Alex Mustard / Wonderpus octopus (Wunderpus photogenicus) reared up on its long arms for a better view. Dauin, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Bohol Sea, tropical west Pacific Ocean.

Alex Mustard / Portrait of a Tropical bottletail squid (Sepiadarium kochi) partially buried in sand and illuminated in a beam of light, at night. Dauin, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. B...

Alex Mustard / Large blue ring octopus (Hapalochlaena lunulata) swimming just above the sea bed. Dauin, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Bohol Sea, tropical west Pacific Ocean.

Alex Mustard / Warty frogfish (Antennartius maculatus) female raising her elaborate lure to attract prey. Dauin, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Bohol Sea, tropical west Pacific Ocean.

Alex Mustard / Box crab (Calappa sp.) female emerging from the sand and shakes her body to release her tiny young. Dauin, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Bohol Sea, tropical west Pacific...

Alex Mustard / Pair of pygmy lemon gobies (Lubricogobius exiguus) make their home in an old heart urchin (Maretia sp.) test. Dauin, Dauin Marine Protected Area, Dumaguete, Negros, Philippines. Bohol Sea, tropical we...