Gaur bull in Nagarahole National Park, India. Gaur (Bos gaurus gaurus) is one of the large wild ungulates of Asian jungles. It is the tallest living ox, and one of…
A captive Kihansi spray toad at the WCS Bronx Zoo. Photo by: Rhett A. Butler. In 1996 scientists discovered a new species of dwarf toad: the Kihansi spray toad (Nectophrynoides…
Chinook salmon. Photo by: USGS. In March of this year the Elwha Dam, which had stood for 99 years, was demolished in the U.S. state of Washington. Five months later,…
An extinct marsupial mega-herbivore, Diprotodon optatum. Drawing by Peter Murray. Image © Science/AAAS. The theory that humans, and not climate change, was primarily responsible for the extinction of giant marsupials…
Wolf in Yellowstone National Park. Photo courtesy of Yellowstone National Park. Less than a year after being pulled off the Endangered Species Act (ESA), gray wolves (Canis lupus) in the…
Singa betina mempertahankan wildebeest yang terbunuh di Tanzania. Foto oleh: Rhett A. Butler. Populasi serigala di seluruh dunia telah turun sekitar 99 persen dari jumlah populasi yang pernah ada dalam…
In 2000 the Canada lynx (Lynx canadensis) was listed as threatened under the US Endangered Species Act (ESA). While remaining stable in Canada and Alaska, the Canada lynx population had…
Lioness defends wildebeest kill in Tanzania. Photo by: Rhett A. Butler. Worldwide wolf populations have dropped around 99 percent from historic populations. Lion populations have fallen from 450,000 to 20,000…
Sharks dwell in the ocean, wolves on land; sharks are a type of fish, wolves are a mammal; sharks go back some 400 million years, wolves only some 2 million…
Rehabilitation is a powerful word these days. Fashionable, too. In wildlife conservation, rehabilitation can serve functions ranging from augmenting threatened animal populations to desperate attempts to save species from permanent…
Poachers killed off the last Bengal tiger in India's Sariska Tiger Reserve in 2004. Four years later, officials transferred three tigers from Ranthambhore National Park to Sariska in an attempt…