If you imagine the news of extinctions is in any way inflated, this shows you wrong. Whole groups of related species, at the genera level of classification are becoming extinct. This means that no surviving relative species are poised to fill ecological niches left vacant, a situation that may take tens of thousands of years to recover. ... See MoreSee Less
A new analysis of mass extinction at the genus level, from researchers at Stanford and the National Autonomous University of Mexico, finds a “mutilation of the tree of life” with massive potential harms to human society.