Koala (Phastolarctos cinereus) in Gum Tree (Eucalyptus sp) forest, Victoria, Australia Koala (Phastolarctos cinereus), Victoria, Australia Koala mother carrying young in Gum Tree (Eucalyptus sp) forest, Victoria, Australia Marine Iguana on rock in shallow water, Galapagos Islands, Ecuador Adelie Penguin (Pygoscelis adeliae) group, Ross Sea, Antarctica Cardon (Pachycereus pringlei) cactus in dry arroyo, Sea of Cortez, Mexico Fishhook Cactus (Mammillaria sp) blooming, Sea of Cortez, Baja California, Mexico Old Man Cactus (Lophocereus schottii) in Sonoran desert, Mexico Sea ice break-up, Transantarctic Mountains, Ross Sea, Antarctica Puna Flamingo (Phoenicopterus jamesi) rare, three drinking from freshwater spring Puna Flamingo (Phoenicopterus jamesi) rare, wading Emperor Penguin (Aptenodytes forsteri) parents greeting chick Waved Albatross (Diomedea irrorata) courtship display sequence Laysan Albatross pair bonding, Midway Atoll, Hawaii Gentoo Penguin nesting adults rebuild pebble nest, Antarctica Chinstrap Penguin bowing over twin chicks Nelson Island, Antarctica Antipodes Parakeet in tussock grass, Antipodes Island, New Zealand Greater Flamingo group courtship flight over salt lagoon, Ecuador Erect-crested Penguin , restricted to Proclamation Island, New Zealand Emperor Penguin pair with chick, Atka Bay, Weddell Sea, Antarctica Galapagos Tortoise on caldera rim, Alcedo Volcano, Ecuador Galapagos Tortoise on caldera rim, Alcedo Volcano, Ecuador Adelie Penguin group crowding on melting summer ice floe, Possession Island Adelie Penguin group commuting across algae stained summer melt pool Emperor Penguin Emperor Penguincourting pair, Atka Bay, Weddell Sea, Antarctica Bromeliads growing in trees along stream in Brazil Page 1