Frigate Bird Displaying, Tower Island, Galápagos Islands, March 22, 1966

Peach Tree in Wheat Field, West from Bassae, Greece, April 11, 1967

Olive Trees and Wildflowers, Road from Pylos, Greece, April 13, 1967

Marine Worm on Beach, Punta Cormorant, Floreana Island, Galapagos Islands, May 31, 1966

Green Heron on Shore, Sombrero Chino, Santiago Island, Galápagos Islands, May 13, 1966

Green Heron on Shore and Red Crabs, Northside of Santiago Island, Galápagos Islands, May 11, 1966

Galápagos

Lion Hunt Mosaic, Pelle, Macedonia, April 26, 1967

Temple of Egyptian Gods, Gortis, Crete, March 21, 1970

Almond Tree and Temple of Apollo, Delphi, Greece, April 23, 1967

Golden Moss, Hvita River, Below Gullfoss, Iceland, June 18, 1972

Devil's Crown, Onslow Island, Floreana Island, Galápagos Islands, May 31, 1966

Galápagos Hawk, Adult, Punta Espinosa, Fernandina Island, Galápagos Islands, April 8, 1966

Fur Seal, Alcedo Camp on Isabela Island, Galápagos Islands, May 6, 1966

Brown Pelicans Nesting, Punta Espinosa, Fernandina Island, Galápagos Islands, April 3, 1966

Dendroica petechia Bathing, Academy Bay, Santa Cruz Island, Galápagos Islands, April 27, 1966

Flightless Cormorant, Espinosa Point, Fernandina Island, Galápagos Islands, April 3, 1966

Rocks, Lichen, Vegetation, South Plazas Island, Galápagos Islands, June 6, 1966

Rocks, Lichen, Vegetation, South Plazas Island, Galápagos Islands, June 6, 1966

Swallowtail Gull, Punta Pitt, San Cristóbal Island, Galápagos Islands, May 24, 1966