Mark Moffett / Large Ground Finch (Geospiza magnirostris) endemic species, extra large bill for cracking large seeds, largest of Darwin's 13 Finches, Santiago Island, Galapagos Islands, Ecuador

Pete Oxford / Leaf detail, Mindo cloud forest, Ecuador

Tui De Roy / Waved Albatross (Phoebastria irrorata) pair bonding, Punta Cevallos, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Great Frigatebird (Fregata minor) male with inflated gular pouch in courtship display, Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Great Frigatebird (Fregata minor) pair courting, male in full display with inflated gular air pouch, Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Great Frigatebird (Fregata minor) male in courtship display with fully inflated gular air pouch, Tower Island, Galapagos Islands, Ecuador

Fred Bavendam / Scalloped Hammerhead Shark (Sphyrna lewini) close-up portrait Galapagos Islands, Ecuador, Ecuador

Murray Cooper / Orchid (Dracula lafleurii) flower with pollinator flies, Ecuador

Tui De Roy / Great Frigatebird (Fregata minor) feathers, Galapagos Islands, Ecuador

Pete Oxford / Scalesia (Scalesia affinis), Isabella Island, Galapagos Islands, Ecuador

Pete Oxford / Fern frond with drip tips, Mindo Cloud Forest, Ecuador

Ingo Arndt / Sally Lightfoot Crab (Grapsus grapsus) on rocks, Santiago Island, Galapagos Islands, Ecuador

Ingo Arndt / Galapagos Land Iguana (Conolophus subcristatus) sunning individual, Isabella Island, Galapagos Islands, Ecuador

Pete Oxford / Katydid (Steirodon sp) close-up showing ear on front leg, western slopes of the Andes, Ecuador

Pete Oxford / Katydid (Steirodon sp) on human hand, western slopes of the Andes, Ecuador

Pete Oxford / Katydid (Steirodon sp) on human hand, western slopes of the Andes, Ecuador

Pete Oxford / Katydid (Steirodon sp) portrait on branch, western slopes of the Andes, Ecuador

Pete Oxford / Katydid (Copiphora brevicauda) close-up portrait, Ecuador

Pete Oxford / Marsupial Frog (Gastrotheca riobambae) tadpole with back legs developed, Andes Mountains, Ecuador

Pete Oxford / Marsupial Frog (Gastrotheca riobambae) tadpole underwater, back and front legs developed, Ecuador

Winfried Wisniewski / Flightless Cormorant (Phalacrocorax harrisi) portrait, Galapagos Islands, Ecuador

Winfried Wisniewski / Sally Lightfoot Crab (Grapsus grapsus) close up portrait, Galapagos Islands, Ecuador

Mark Moffett / Large Ground Finch (Geospiza magnirostris) feeding, endemic species, extra large bill for cracking large seeds, largest of Darwin's 13 Finches, Santiago Island, Galapagos Islands, Ecuador

Pete Oxford / Wild Horse (Equus caballus) in open grassland, Andes Mountains, Ecuador

Pete Oxford / Ocelot (Leopardus pardalis) sitting among plants on the forest floor in the Amazon rainforest, Ecuador

Mark Moffett / Planthopper (Fulgoroidea) with waxy tail, Ecuador

Mark Moffett / Galapagos Mockingbird (Nesomimus parvulus) with nesting material, Isabella Island, Galapagos Islands, Ecuador

Mark Moffett / Introduced Wasp pollinating a flower, Galapagos Islands, Ecuador

Mark Moffett / Galapagos Land Iguana (Conolophus subcristatus) close-up, on rock, Galapagos Islands, Ecuador

Pete Oxford / New fern head with protective gelatinous coating, Mindo cloud forest, Ecuador

Pete Oxford / Jaguarundi (Puma yagouaroundi) resting on rainforest floor, Ecuador

Pete Oxford / Jaguarundi (Puma yagouaroundi) resting on rainforest floor, Ecuador

Pete Oxford / Chagra or cowboy trimming a horse's hooves at a hacienda in the Andes Mountains during the annual cattle round-up, Ecuador

Gerry Ellis / Praying Mantis (Mantis sp), Los Cedros River Valley, Ecuador

Birgitte Wilms / Large-banded Blenny (Ophioblennius steindachneri) portrait, 40 feet deep, Galapagos Islands, Ecuador

Chris Newbert / Seahorse (Hippocampus sp) holding onto reef wall, 60 feet deep, Galapagos Islands, Ecuador

Chris Newbert / Seahorse (Hippocampus sp) holding on to Sea Fan (Echinogorgia sp) 60 feet deep, Galapagos Islands, Ecuador

Gerry Ellis / Praying Mantis (Mantis sp) head and legs, Los Cedros River Valley, Ecuador

Chris Newbert / Octopus (Octopus sp) close-up of eye, Galapagos Islands, Ecuador

Mark Moffett / Phantasmal Poison Dart Frog (Epipedobates tricolor) close-up portrait on Heliconia, near Cuenca, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) newborn pup suckling, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Great Frigatebird (Fregata minor) male in courtship display with extended gular pouch, Darwin Bay, Genovesa Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Great Frigatebird (Fregata minor) male in courtship display with extended gular pouch, Darwin Bay, Genovesa Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Great Frigatebird (Fregata minor) male in courtship display with extended gular pouch, Darwin Bay, Genovesa Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Waved Albatross (Phoebastria irrorata) courtship display sequence, Punta Cevallos, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Nazca Booby (Sula granti) showing binocular vision, Genovesa Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Flightless Cormorant (Phalacrocorax harrisi) endemic pair, showing heavily built head and hair-like feathers, Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Flightless Cormorant (Phalacrocorax harrisi) endemic pair, showing heavily built head and hair-like feathers, Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Land Iguana (Conolophus subcristatus) rolling freshly fallen ripe Opuntia cactus fruit to get rid of spines, Plazas Island, Galapagos Islands, Ecuador

Tui De Roy / Masked Booby (Sula dactylatra) couple allopreening during courtship, Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pup awaiting mother's return, Puerto Egas, Santiago Island, Galapagos Islands, Ecuador

Tui De Roy / Red-footed Booby (Sula sula) brown morph incubating, Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Masked Booby (Sula dactylatra) calling at nest site, Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Masked Booby (Sula dactylatra) showing binocular vision, Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Masked Booby (Sula dactylatra) yawning, Hood Island, Galapagos Islands, Ecuador

Tui De Roy / Masked Booby (Sula dactylatra) portrait, Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Sally Lightfoot Crab (Grapsus grapsus) portrait near tide line, Galapagos Islands, Ecuador

Tui De Roy / Waved Albatross (Phoebastria irrorata) couple in courtship display, Punta Suarez, Hood Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) with fresh shark bite, Mosquera Island, Galapagos Islands, Ecuador

Tui De Roy / Great Frigatebird (Fregata minor) male in courtship display with extended gular pouch with female, Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Great Frigatebird (Fregata minor) male in courtship display with fully inflated gular air pouch, Tower Island, Galapagos Islands, Ecuador

Norbert Wu / Scallop (Nodipecten magnificus) colorful mantle contains blue eyes, Galapagos Islands, Ecuador

Fred Bavendam / Fine-spotted Moray Eel (Gymnothorax dovii) with mouth wide open, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Land Iguana (Conolophus subcristatus) feeding on Moss Rose (Portulaca sp) flowers during brief rainy season, Plazas Island, Galapagos Islands, Ecuador

Tui De Roy / Great Frigatebird (Fregata minor) male with pouch inflated in full courtship display, Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Lava Lizard (Tropidurus albemarlensis) male, profile, on rock, James Bay, Santiago Island, Galapagos Islands, Ecuador

Tui De Roy / Jaguar (Panthera onca) portrait, Ecuador

Pete Oxford / Guest at a hacienda in the Andes Mountains drinking water from a cattle horn canteen, known locally as a trincera, Andes Mountains, Ecuador