Scavenging sea stars and a humpback shrimp (Pandalus hypsinotus) working on the remains of a rock crab, Canada, North America

A cleaner shrimp (Lysmata amboinensis), inspects the teeth of an undulated moray eel, Hawaii, United States of America, Pacific, North America

Northern giant petrel (Macronectes halli) threat display on the beach at Stromness, South Georgia, Southern Ocean, Polar Regions

Northern giant petrel (Macronectes halli) threat display while feeding on elephant seal pup carcass at Stromness, South Georgia, Polar Regions

Tourists on the Big Cypress Bend boardwalk at Fakahatchee Strand, the Everglades, Florida, United States of America

Alligator and Great White Egret at Big Cypress Bend, Fakahatchee Strand in the Everglades, Florida, USA

Green sea turtles hatching, Chelonia mydas, Fernando de Noronha, Pernambuco, Brazil.

Strawberry Poison Frog (Dendrobates pumilio), adult, Bastimentos National Park, Bocas del Toro, Panama. The strawberry poison frog or strawberry poison-dart frog (Oophaga pumilio or Dendrobates pumilio) is a species of small amphibian poison dart frog found in Central America. It is common throughout its range, which extends from eastern central Nicaragua through Costa Rica and northwestern Panama. The species is often found in humid lowlands and premontane forest, but large populations are also found in disturbed areas such as plantations. The strawberry poison frog is perhaps most famous for its widespread variation in coloration, comprising approximately 15���30 color morphs, most of which are presumed to be true-breeding. O. pumilio, while not the most poisonous of the dendrobatids, is the most toxic member of its genus. The species is most diverse in Panama with varieties in vivid shades of all red, orange, blue, yellow or green, green and yellow, white with red, orange or black and spotted varieties. The most colorful mix is found in Isla Bastimentos Marine National Park though not all in one place. Colors vary by location. A beach on the north side of the island is named after the species. Two of Southern Explorations' Panama tours visit red frog habitat. Both the eight-day Panama Adventure trip and eleven-day Panama Highlights trip spend time in Isla Bastimentos Marine National Park and the former also goes to Red Frog Beach. The red frog is not as poisonous as some of its cousins and is not a threat to humans. It subsists on a diet of ants that dine on poisonous plants, providing the red frog its protective skin toxin. Males attract females with a loud quick chirp. To hear the distinctive sound before you depart on your Panama tours, go to the University of Michigan Museum's biodiversity website (www.animaldiversity.ummz.umich.edu.) After birth, the tadpoles climb aboard the mother who deposits them in different protected areas where she retu

Electric eel, Electrophorus electricus; this air-breathing freshwater fish can deliver an electric shock up to 650 volts and naturally occurs in the Amazon river basins of South America including Brazil and Guyanas; photo taken in captivity.

Needle cuttlefish, Sepia aculeata, front view at night, Dumaguete, Negros Island, Philippines.

Nudibranch, Atlantis house reef, Dumaguete, Negros Island, Philippines.

Hermit crab, Coenobita perlatus, Bird I., Mili, Marshall Islands (N. Pacific).

Stripe-leg spiny lobster, Panulirus femoristriga, eye and rostrum detail, Short drop-off, Palau, Micronesia.

Emperor angelfish, Pomacanthus imperator, Namu atoll, Marshall Islands (N. Pacific).

Snowflake moray eel, Echidna nebulosa, scavenging in seagrass beds, Dumaguete, Negros, Philippines, Visayan sea.

Bigfin reef squid, Sepioteuthis lessoniana, schooling, Rongelap, Marshall Islands, Micronesia

Common lionfish, Pterois volitans, blends in with a variety of soft corals and sponges, Cars, Dumaguete, Negros Island, Philippines.

Juvenile striped catfish, Plotosus lineatus, schooling and feeding on sandy bottom, Puerto Galera, Mindoro, Philippines.

Thousands of scalefin anthias, Pseudanthias squamipinnis, hover over corals and barrel sponge, Puerto Galera, Mindoro, Philippines.

Short-tailed pipefish, Trachyrhamphus bicoarctatus, Masaplod, Dumaguete, Negros Island, Philippines..

Spiral coral, Cirrhipathes spiralis, Dungan wall, Puerto Galera, Mindoro, Philippines.

Emperor shrimp, Periclimenes imperator, next to gills of spanish dancer, Hexabranchus sanguineus, night, Puerto Galera, Mindoro, Philippines.

Aggregation of pyramid butterflyfish, Hemitaurichthys polylepis, Siaes drop-off, Palau, Micronesia.

Mandarinfish, Synchiropus splendidus, male, Malapascua, Cebu, Philippines, Visayan Sea.

Map puffer, Arothron mappa, Skin texture detail, Dumaguete, Negros, Philippines, Visayan sea.

Nudibranch, Chromodoris magnifica, Dumaguete, Negros Island, Philippines.

Over under image of coral reef, Acropora spp., and trees at Majikin Island, Namu atoll, Marshall Islands (N. Pacific).

Bottlenose dolphin, Tursiops truncatus, Oahu, Hawaii (N. Pacific).

Juvenile and adult pink anemonefish in sea anemone, Amphiprion perideraion, Fila Reef, Port Vila, Vanuatu (S. Pacific).

Bigfin reef squid, Sepioteuthis lessoniana, schooling, Rongelap, Marshall Islands, Micronesia

Over under image of coral reef, Acropora spp., and trees at Majikin Island, Namu atoll, Marshall Islands (N. Pacific).

Orange-finned anemonefish, Amphiprion chrysopterus, and Merten's sea anemone, Stichodactyla mertensii, Namu atoll, Marshall Islands (N. Pacific).

Saddled butterflyfish, Chaetodon ephippium, Namu atoll, Marshall Islands (N. Pacific).

Beaked Whale stranded on coral reef during low tide, Mesoplodon sp., Mili, Marshall Islands (N. Pacific)..

Jellyfish, Mastigias sp., Palau, Micronesia.

Swimming crab, Charybdis acutifrons, Gato Island, Cebu, Philippines.

Thrill seekers experience cage diving with Galapagos sharks, Carcharhinus galapagensis, North shore, Oahu, Hawaii, USA

Split image of lush vegetation and free diver observing lettuce coral, Turbinaria reniformis, next to cave entrance, Palau, Micronesia.

Regal angelfish, Pygoplites diacanthus, Hideaway island, Port Vila, Vanuatu.

Yellow boxfish, Ostracion cubicus, juvenile, Dumaguete, Negros Island, Philippines.

Pair of mandarinfish, Synchiropus splendidus, mating, Malapascua ,Cebu, Philippines, Visayan Sea.

Broadband cuttlefish, Sepia latimanus, in sandy bottom, Gato Island, Cebu, Philippines.

Ornamental crab, Schizophrys aspera, Palau, Micronesia.

Decorator spider crab, Cyclocoeloma tuberculata, Dumaguete, Negros, Philippines.

Common lionfish, Pterois volitans, close-up, Sabang wreck, Puerto Galera, Mindoro, Philippines.

Over under of banca and sandy seafloor, Apo island Marine Reserve, Philippines.

Anemone shrimp, Periclimenes brevicarpalis, El Dorado reef, Dumaguete, Negros Island, Philippines.

Regal angelfish, Pygoplites diacanthus, Namu atoll, Marshall Islands (N. Pacific).

Coral reef, Namu atoll, Marshall Islands (N. Pacific).

Over under image of marshallese boy smiling underwater next to coral reef and coconut trees lining the shore of Majikin Island, Namu atoll, Marshall Islands (N. Pacific).

Piranha (Pygocentrus nattereri), a carnivorous fish, caught on a line, southern Pantanal, Mato Grosso do Sul, Brazil

Reef cuttlefish, Sepia sp., displaying defensive posture, Dumaguete, Negros Island, Philippines.

Whitetip reef shark, Triaenodon obesus, resting in cave, Namu atoll, Marshall Islands (N. Pacific).

French angelfish, Pomacanthus paru, Ilha rata, Fernando de Noronha national marine sanctuary, Pernambuco, Brazil (S. Atlantic)

Blackspotted puffer fish, Arothron nigropunctatus, Dumaguete, Negros, Philippines, Visayan sea.

Large group of pink whipray or Tahitian stingray, Himantura fai, Rongelap, Marshall Islands, Micronesia

Wire coral goby, Bryaninops yongei, on wire coral, Cirripathes anguina, Namu atoll, Marshall Islands (N. Pacific).

Scalloped hammerhead shark, Sphyrna lewini, Kaneohe Bay, Oahu, Hawaii (N. Pacific).

Parrotfish sleeping, Sparisoma sp., head detail, Ponta da Sapata, Fernando de Noronha national marine sanctuary, Pernambuco, Brazil (S. Atlantic)

Painted frogfish, Antennarius pictus, white phase, Sabang wreck, Puerto Galera, Mindoro, Philippines.

Feather star on sea fan, and scalefin anthias, Pseudanthias squamipinnis, Kilima steps, Puerto Galera, Mindoro, Philippines.

Grey reef shark, Carcharhinus amblyrhynchos, Blue corner, Palau.

Magnificent sea anemone, Heteractis magnifica, Dumaguete, Negros, Philippines.

Anemone hermit crab, Dardanus pedunculatus, Dumaguete, Negros Island, Philippines.

Balloonfish, Diodon holocanthus, at night, Dumaguete, Negros Island, Philippines.

Mantis shrimp, Odontodactylus scyllarus, Dauin, Dumaguete, Negros Island, Philippines.

Banded coral (cleaner) shrimp, Stenopus hispidus, Dumaguete, Negros Island, Philippines.

Thorny oyster, Spondylus varius, resting on coral reef at night, Dumaguete, Negros Island, Philippines.

Shortnose boxfish, Rhynchostracion nasus, at night, Dumaguete, Negros Island, Philippines.

Tube anemone close-up, Cars, Dumaguete, Negros Island, Philippines.

Painted frogfish, Antennarius pictus, perched on red sponge, Dumaguete, Negros, Philippines.

Spider crab, Chirostylus sp., on soft coral, Dendronephthya sp., Dumaguete, Negros Island, Philippines.

Pleurobranch slug, Pleurobranchus grandis, night, Dumaguete, Negros, Philippines.

Bigfin reef squid, Sepioteuthis lessoniana, Dumaguete, Negros Island, Philippines.

Dried stingrays for sale at Jagalshi seafood market, Busan, South Korea.

Emperor shrimp, Periclimenes imperator, on top of nudibranch, Pleurobranchus grandis, at night, Dumaguete, Negros Island, Philippines.

Painted frogfish, Antennarius pictus, head detail, Masaplod, Dumaguete, Negros Island, Philippines..

Aerial view of atoll near Majuro, Marshall Islands (N. Pacific).

Freshwater plants in national freshwater spring preserve, Aqu∑rio natural, Bonito, Brazil.

Fire urchin, Asthenosoma varium, Sinandigan wall, Puerto Galera, Mindoro, Philippines.

Blackfin barracuda, Sphyraena qenie, schooling, Namu atoll, Marshall Islands (N. Pacific).

Thousands of scalefin anthias, Pseudanthias squamipinnis, hover over green coral, Tubastrea micrantha, Puerto Galera, Mindoro, Philippines.

Caiman or jacare, Caiman crocodilus yacare, at night, southern Pantanal, Mato Grosso do Sul, Brazil

Highly diverse coral reef, mainly cauliflower coral, Pocillopora spp., and Pavona minuta (background), Namu atoll, Marshall Islands (N. Pacific).

Feather star, Oxycomanthus bennetti, Dauin, Dumaguete, Negros Island, Philippines.

Cushion star, Culcita novaguineae, skin texture, Small La Laguna, Puerto Galera, Mindoro, Philippines.

Orange cup coral, Tubastrea faulkneri, Dumaguete, Negros Island, Philippines.

Celebes wrasse, Oxycheilinus celebicus, Dumaguete, Negros, Philippines.

Ascidian colony, Clavelina robusta, Gato Island, Cebu, Philippines.

Piranha (Pygocentrus nattereri), a carnivorous fish, caught on a line, southern Pantanal, Mato Grosso do Sul, Brazil

Shovelnose guitarfish, Rhinobatus productus, California, USA.

Colorful decorator crab, Camposcia retusa, at night, Dumaguete, Negros Island, Philippines.

Thornback cowfish, Lactoria fornasini, Sabang wreck, Puerto Galera, Mindoro, Philippines.

Flock of Canada Geese in flight in winter, GB

Pair of Mandarin Ducks on the water, Midlands UK

Mandarin Duck male on the water, Midlands UK

Salted blue shark drying in the sun, Guerero Negro Mexico

Mandarin Duck male on the water, Midlands UK

Portrait of Mandarin Duck male on the water, Midlands UK

Mandarin Duck male on the water, Midlands UK