Two-toed sloth in the rain forest outside of the town of Puerto Viejo, Costa Rica
Three-toed sloth and her baby clutching on - Manzanillo, Costa Rica
Three-toed sloth - Manzanillo, Costa Rica
Hummingbird feeding in Corcovado National Park - Costa Rica
Flowers in the forest - Arenal, Costa Rica
Spotted the rare Golden-headed Quetzal - Corcovado National Park, Costa Rica
Black-mandibled Toucan - Corcovado National Park, Costa Rica
Black Mandibled Toucan Profile - Corcovado National Park, Costa Rica
Floating Flowers in a Stone Vase - San Jose, Costa Rica
Arenal in the Morning - Arenal, Costa Rica
Scarlet Macaw - Corcovado National Park, Costa Rica
Whimbrel - Manzanillo, Costa Rica
Poison Dart Frog - Limon, Costa Rica
Butterfly and the Flower - Limon, Costa Rica
Eyelash Viper - Limon, Costa Rica
Yellow Eyelash Viper - Limon, Costa Rica
Spider on the Path - Limon, Costa Rica
Crocodile by the River - Corcovado National Park, Costa Rica
Lizard in the Morning - Corcovado National Park, Costa Rica
Iguana - Corcovado National Park, Costa Rica
Rainforest in Sunrise - Corcovado National Park
White-faced Capuchin Monkey - Corcovado National Park
Volcanic Hot Springs - Arenal, Costa Rica
Hummingbird Passing - Arenal, Costa Rica
Water and the Tree - Corcovado National Park
Monkey and Me - Corcovado National Park
The (very loud) Rocket Frog - Corcovado National Park
Butterfly in the Garden - Limon, Costa Rica
Toucan - Limon, Costa Rica
Red Dragonfly - Limon, Costa Rica
View From My Tent - Corcovado National Park
Sallie Light-foot Crab - Santa Cruz, Galapagos 2011 National Wildlife Federation Photography Contest Winner
Blue-footed Booby - North Seymour, Galapagos
Yawning Tortoise - Santa Cruz, Galapagos
Winking Tortoise - Santa Cruz, Galapagos
Lava Gull - North Seymour, Galapagos
Male Frigate Bird - North Seymour, Galapagos
Crying Finch - Santa Cruz, Galapagos
Frigate Bird - North Seymour, Galapagos
Swimming Marine Iguana - Santa Cruz, Galapagos
Sunning Lizard - Santa Cruz, Galapagos
Land Iguana - North Seymour, Galapagos