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 spread of species beyond their native habitat is a human-made environmental change on a global scale. Among vascular plants, over 16,000 species have now permanently settled in foreign countries.

Effective management of invasive alien vegetation is one of the most critical ways to protect South Africa’s natural water sources. According to WWF South Africa’s Water Gains Calculator Tool, in 2025 ...