This woolly monkey is just one of some 30 species of Colombian primates. Photo by: Brodie Ferguson, 2006. A new study in the open access journal Tropical Conservation Science looks…
Madagascar is home to some strange and wonderful animals, but few stranger and more wonderful than the tenrecs. Belonging to the family of Afrotheria, the small shrew-like tenrecs are most…
A baby bat in Brazil clinging to a napkin. Photo by: Rhett A. Butler, 2009. Mongabay.com has been unable to identify the species of this bat. If you know the…
The world's largest sea turtle, the Leatherback, camouflages its nest on a beach in northern Suriname. After laying their eggs, mother leatherbacks spend considerable time and energy camouflaging the nest…
The beautiful spectacled eider is not in decline, but several of its neighboring species are. A new study finds that while species populations in the overall Arctic biome are on…
The Critically Endangered pygmy three-toed sloth is endemic to a small island off the coast of Panama. Photo courtesy of Bryson Voirin. The world's smallest sloth is threatened by human…
A white-headed vulture (Trigonoceps occipitalis) in Tanzania. Photo by: Rhett A. Butler, 2007. Vultures are rarely people's favorite animals, yet they play a big role by devouring the bodies of…
The practice of traditional medicine in China incorporates a wide variety of body parts taken from wild animals, making it one of the largest threats to animals in Asia. For…
Flying over the Okavango Delta in Botswana is a great opportunity to get an aerial view of big mammals, such as this good-sized herd of African buffalo (Syncerus caffer). Photo…
The stuff of myths, legends, and nightmare: the anaconda, according to Paul Rosolie, is even misunderstood by Amazonian tribes. Rosolie, who refers to the world's largest snakes as 'sweethearts' in…
Agoutis, such as this Central American agouti (Dasyprocta punctata) mother with babies, deserve a lot of respect. These large rainforest rodents are seed specialists and play a major role in…
The Boophis goudoti is one of hundreds of frogs endemic to the island of Madagascar. Every single frog species in Madagascar can be found now where else in the world,…
The fearsome teeth of a piranha. The fish was caught by a local fisherman on the Essequibo River in Guyana: it is considered good-eating by locals. Photo by Tiffany Roufs,…
Hatchling Olive Ridley sea turtle makes its way out to sea near Dominical, Costa Rica. Photo by Rhett A. Butler, 2008. This Olive Ridley sea turtle was one of several…
Gorgeous red grasshawk (dragonfly) near Nyaru Menteng, Central Kalimantan (Indonesian Borneo). Photo by Rhett A. Butler, 2009. Red Grasshawk (Neurothemis fluctuans) in Sumatra. Photo by Rhett A. Butler, 2006. Red…
The jaguar Panthera onca is classified as Near Threatened: a previous six-week expedition to Rewa Head observed ten jaguars. Photo by: Ashley Holland and Gordon Duncan. Guyana bans gold mining…
Blue-eyed butterfly (species unknown) in North Sumatra. Photo by Rhett A. Butler, 2009.
Blueberry poison arrow frog (Dendrobates pumilio) in Bocas de Toro, Panama. Photo by Rhett A. Butler, 2007. This is just one of many color forms for Dendrobates pumilio. More commonly,…
Anole in Las Cruces Biological Station, Costa Rica. Photo by Rhett A. Butler 2008.
Reed Frog (Heterixalus alboguttatus) I spotted this colorful frog near Ranomafana National Park, Madagascar. It's common name is misleading: the White Spotted Reed Frog. Madagascar is thought to have more…
Leopard caught by a camera trap in the Jeypore-Dehing forest. Photo by: Kashmira Kakati. Using camera traps over a two-year period, wildlife biologist Kashmira Kakati has discovered seven species of…
Captive okapi. Photo by Rhett A. Butler Twelve-year-old on a mission to save Africa's most unusual animal, the okapi, an interview with Spencer Tait (02/16/2010) Anyone who says a kid…
South China Tiger in South Africa, where Save China's Tigers has established a "rewilding" facility to eventually enable to reintroduction of the South China Tiger into its native habitat in…
Cave snake catching and eating a bat in flight. Photo by Rhett A Butler, 2006. Taman Negara, Malaysia.
Coquerel's sifakas grooming in Madagascar. Photo by Rhett A. Butler 2010. Madagascar is in the midst of an appalling logging crisis driven by greed and politics. Here's a proposal for…
African Wild Dog in the Serengeti. Photo by Uwe Skrzypczak. Wildlife photographer Uwe Skrzypczak sent photos of wild dogs (also known as painted dogs from the field. The shots are…
Lion with kill in Ngorongoro Crater, Tanzania. Photo by Rhett A. Butler, 2007 Why top predators matter: an in-depth look at new research (02/02/2010) Few species have faced such vitriolic…
Defensive ostrich in Tarangire National Park, Tanzania. Photo by Rhett A. Butler, 2007
Purple-striped jellyfish (Chrysaira colorata). All photos taken in captivity by Rhett A. Butler 2007-2008. As the world's oceans become degraded from overfishing, pollution, and absorption of atmospheric CO2, less complex…
Gray Mouse Lemur (Microcebus murinus). Photo by Rhett A. Butler 2009. New research supports the long-held belief that Madagascar's mammals populated the island by rafting on clumps of vegetation across…