EIRUNEPE, Brazil - An expedition exploring a remote watershed in the western Amazon has uncovered the first living evidence of a species of monkey not seen alive by scientists in…

LAHAD DATU, Malaysia – The rhino breeding center near the entrance to Danum Valley Conservation Area sits like an oasis of calm against the cacophony of beeps, woots and zaps…

The 1980s rock band Cinderella had its biggest hit with the song, “Don’t Know What You Got (Till it’s Gone),” riffing off the age-old proverb. Of course, Cinderella’s song is…

For the better part of the 20th century, the wooly flying squirrel (Eupetaurus cinereus) was believed to have gone extinct. If that had been true, the world would have lost…

Skittering in small clans among the hard-scrabble brush of the Gran Chaco in South America, the taguá looks like a cross between a svelte pig and an over-sized hedgehog. Also…

PALANGKARAYA, Indonesia — One recent morning I paid a visit to Iber Djamal, a leader of the Dayak Ngaju indigenous people. He had invited us to see his mandau, a…

One of the newly discovered Sumatran rhinos in Kalimantan, the Indonesian part of Borneo, died on Tuesday from a leg infection after being wounded by a snare. The critically endangered…

The blue-bearded helmetcrest (Oxypogon cyanolaemus) is a spectacular hummingbird. It is aptly named for the blue streak of feathers on its chin and a pointed crest on its head resembling…

Young primatologist takes first photo ever of Bouvier's red colobus Detail from the world's first photo of Bouvier’s red colobus (Piliocolobus bouvieri) taken early March 2015 in the Ntokou-Pikounda National…

In 1970 researchers uncovered the Tandayapa Andean toad (Andinophryne olallai), previously unknown to science, in the Pichincha Province of Ecuador. Given that only a single individual was discovered, even after…

In the past 20 years, amphibian species around the world have experienced rapid decline due to climate change, disease, invasive species, habitat loss and degradation. Populations have decreased by approximately…

An interview with Robin Moore, author of the new book, In Search of Lost Frogs: The Quest to Find the World's Rarest Amphibians The Cuchumatan golden toad (Incilius aurarius) from…

Rediscovered mammal had been slaughtered by the Inca hundreds of years ago The Machu Picchu arboreal chinchilla rat come back to life! Photo by: Roberto Quispe. Below one of the…

Discovery offers 'incredible second chance' at species protection Once plentiful on a tiny coral atoll in the Indian Ocean, the Aldabra banded snail (Rachistia aldabrae) was declared extinct in 1997…

In 1890 Lamberto Loria collected 45 specimens—all female—of a small bat from the wilds of Papua New Guinea. Nearly 25 years later, in 1914, the species was finally described and…

Scientific American magazine recently ran an article on the rediscovery of the smoothtooth blacktip shark (Carcharhinus leiodon) in a Kuwaiti fish market. Believed extinct for over 100 years, the smoothtooth…

In 1876—the same year that the first telephone call was made—the British scientist Albert Günther described a new species of frog from Sri Lanka, but the species, known as the…

An Australian bushman and naturalist claims to have captured video footage of the night parrot, a bird not seen alive for more than a century. John Young, who describes himself…

The starry shrub frog has been rediscovered after believed extinct for nearly 160 years. Photo by: L.J. Mendis Wickramasinghe. In 1853 Edward Frederick Kelaart, a physician and naturalist, collected a…

The world's first photo of a Sillem's mountain finch. This is a male taken at 5,000 meters above sea level. Photo by: Yann Muzika. In 1929 the U.S. Stock Market…