Data from the IUCN Red List indicate a current extinction rate that is at least two, and probably three, orders of magnitude higher than the background rate typical over the planet’s geological history.
Very little is known about marine and freshwater extinctions, but preliminary evidence from North America indicates a very high level of extinctions in freshwater habitats.
Although information is still very limited, there is growing evidence that marine species are less resilient to extinction in the face of threats than was once thought.
Although the island species have experienced the greatest number of extinctions in historic times, continental extinctions are becoming more frequent, and account for almost 50% of the extinctions confirmed over the last 20 years.
The values shown on those already dismal maps should likely be three times higher than what’s reported, and regardless of whether we know about it, creatures are blinking out all over the planet, all of the time.