Tropical rainforest species are at especially high risk, as are top carnivores, species with small geographic ranges, and marine reef species. Humanity's main impact on the extinction rate is ...

Scientists estimate that a third or more of all the roughly 6,300 known species of amphibians are at risk of extinction [6]. Frogs, toads, and salamanders are disappearing because of habitat loss, ...

“Knowing how animal body size correlates with the likelihood of a species being threatened provides us with a tool to assess extinction risk for the many species we know very little about,” Ripple ...

However, a female-biased birth ratio, with more females than males born, reduces the extinction risk, helping more lineages survive over time. This insight may help explain a long-observed ...

Contrary to the established idea that large predators are particularly at risk of extinction, a study of more than 24,000 species of birds, mammals, and reptiles reveals that herbivores, especially ...

Tropical rainforest species are at especially high risk, as are top carnivores, species with small geographic ranges, and marine reef species. Humanity's main impact on the extinction rate is ...