The IUCN Red List of Threatened Species is the world's most comprehensive inventory of the global conservation status of plant and animal species.
An updated list was published which added nearly 9,000 more species to the IUCN Red List, bringing up the total to 105,732.
According to the new updated list, 28,338 species are threatened with extinction.
This comes close to the recent release of the IPBES (Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services) Global Biodiversity Assessment.
Twenty Australian dragonflies were also assessed for the first time.
The new list brings out an alarming rate of decline of freshwater and deep-sea species.
Among ocean species, wedgefishes and giant guitarfishes, collectively known as Rhino Rays because of their elongated snouts, have been listed as the ‘most imperilled marine fish families in the world’.
Close to 50 per cent of the species assessed by IUCN have been put under the ‘Least Concern’ category.
It means the rest 50 per cent are under various degrees of decline.
Of the total assessed, 873 are already extinct while 6,127 are critically endangered.
According to the global Strategic Plan for Biodiversity (2011-2020)’s Target 12, the extinction of known threatened species has to be ‘prevented’ by 2020.