Among plants, 16,671 species across the country are at risk of extinction, the study found. Nearly half of all cacti species are at risk of extinction, making them the most-jeopardized plant group.

Some 40 per cent of animals and 34 per cent of plants are under threat of going extinct, and 41 per cent of ecosystems are at risk of collapse, according to sweeping report by the conservation ...

Hundreds of plants and animals in Washington are at risk of extinction, a new report on report on U.S. biodiversity found.

A sweeping new study by conservation research group NatureServe finds that 40% of animals and 34% of plants in the U.S. are at risk of extinction, and 41% of ecosystems are facing collapse ...

A leading conservation research group found that 40% of animals and 34% of plants in the United States are at risk of extinction, while 41% of ecosystems are facing collapse.

As the world faces the loss of a staggering number of species of animals and plants to endangerment and extinction, one University of Michigan scientist has an urgent message: Chemists and ...

If all the world's a stage and all the species merely players, then their exits and entrances can be found in the rock record ...

A new report that analyzed more than 50 years of biodiversity data has reached a startling conclusion: 40% of animals and 34% of plants in the U.S. are at risk of extinction. The Biodiversity in ...

More than a third of animal and plant species in the U.S. could go extinct while more than 40% of ecosystems are at risk of collapse, a new report from a conservation group has found.

The Cretaceous period lasted approximately 79 million years, and ended with a major extinction event about 66 million years ago.

More than a third of both animals and plants in the U.S. are currently at risk of extinction, while more than 40 percent of ecosystems are at risk of collapse, according to an analysis released ...