IUCN lists 31 species as 'Extinct', European Bison sees recovery
The IUCN released an update of its Red List of Threatened Species which moved 31 species into the 'Extinct' category. However, the European Bison has moved from 'Vulnerable' to 'Near Threatened' category. Besides this, all of the world's freshwater dolphin species are now listed as threatened on the list. The lost shark has entered the 'Critically Endangered' (Possibly Extinct) category.