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.

The Forest Research and Training Centre (FRTC), in collaboration with the Ministry of Forest and Environment and other partner organizations, organized a two-day maiden National Conference on Invasive ...