An “alien plant” fossil discovered 55 years ago just outside of an abandoned town in Utah has no relation to any currently existing or extinct species, scientists revealed in a study last month.

The tropics and subtropics, collectively the Greater Tropics, are home to most of Earth’s biodiversity and humanity, and are undergoing unprecedented transformations driven by global change. In this ...

An international research team led by the University of Vienna has produced, for the first time, high-resolution global maps of invasion risk for thousands of alien plant species under current ...