US tiger kills Malayan female on first mate

Zoo keepers are probing why a male Malayan tiger killed a four-year-old female tiger it had only just met, when they were brought together for breeding purposes in California.

The extraordinary evolution of REVs

A new study by Anna Maria Niewiadomska and Robert Gifford, of The Aaron Diamond AIDS Research Center, New York, reveals that reticuloendotheliosis viruses (REVs), which originated in mammals, spread to birds as a result of ...

Researchers help 'extinct in the wild' toad return home

(Phys.org)—Scientists from the University of Georgia Savannah River Ecology Laboratory have helped to reintroduce a species of toad declared extinct in the wild to its native range-the world's first reintroduction of an ...

Grand Cayman blue iguana: Back from the brink of extinction

While thousands of species are threatened with extinction around the globe, efforts to save the Grand Cayman blue iguana represent a rarity in conservation: a chance for complete recovery, according to health experts from ...

Smallest turtle in the land becomes more scarce

The Wildlife Conservation Society's Bronx Zoo veterinarians, U.S. Fish & Wildlife Service, New York State Department of Environmental Conservation, and the Massachusetts Natural Heritage and Endangered Species Program have ...

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