I often get asked, what are the most endangered species? And who determines these?
The International Union for Conservation of Nature (IUCN) is the world’s oldest and largest global environmental organisation. Founded in 1948, today the IUCN is largest professional global conservation network. IUCN has more than 1,200 member organizations including 200+ government and 900+ non-government organizations. The Union’s headquarters are located in Gland, near Geneva, in Switzerland.
Threatened species are any species which are vulnerable to extinction in the near future. International Union for Conservation of Nature treats threatened species not as a single category, but as a group of three categories: vulnerable, endangered, and critically endangered, depending on the degree to which they are threatened.
There are far too many species that are considered endangered and it is of course debatable which are the 10 most endangered. To this end, I came across the following list from One Kind Planet and it provides an insight into the plight of some of the most endangered. All credit to One Kind Planet for words and images on this page.
Amur Leopard
Since 1996, the amur leopard has been classified by the IUCN as Critically Endangered with less than 70 individuals thought to exist today. It is hunted and killed for its beautiful fur, its habitat is being destroyed for human settlement and agricultural practices.
Gorillas
Cross River Gorillas and Mountain Gorillas are both classified as Critically Endangered and Endangered by the IUCN since 1996 – that is two out of five gorilla subspecies. There are currently only 200-300 Cross River Gorillas left in the wild, and 900 Mountain Gorillas.
Sea Turtles (e.g. Leather Back)
Two types of sea turtles are among the most endangered species in the world: the Hawks-bill Turtle and the Leather-back Turtle
In the past 100 years, the Hawks-bill Turtle has lost 90 percent of its population, 80 percent of which has been lost in the past 10 years. As of 1996, the IUCN classified it as a critically endangered species. The Leather-back turtle is listed by the IUCN as Vulnerable, yet many sub-populations are facing extinction.
Read more about Leather-back and hawks-bill turtles
Orangutans
Since the millennium, the Sumatran Orangutan has been classified by the IUCN as Critically Endangered with approximately 80% of the population lost in the past 75 years mainly as a result of mass deforestation. This awful trend continues to put pressure on the remaining population of 6,600 Sumatran Orangutans that are estimated to remain on this earth.
Sumatran Elephant
In the past 25 years, the Sumatran Elephant has lost an astounding 70% of its habitat to deforestation for palm oil plantations, agriculture and human settlements. Less than 2000 are estimated to exist and in 2011, the Sumatran Elephant was classified by the IUCN as Critically Endangered.
Read more about Sumatran Elephants
Saola
In 1992, the discovery of this mystical creature, sometimes referred to as the Asian Unicorn, in Vietnam was hailed one of the most spectacular zoological discoveries of the 20th century. Yet already, this elusive and beautiful animal been deemed by the IUCN to be Critically Endangered and is one of the rarest large mammals to exist on Planet Earth.
Read more about the Saola buck
Vaquita Porpoise
With less than 100 thought to exist, the Vaquita is the rarest marine mammal in the world. Time is running out for these elusive little sea porpoises, with extinction predicted as soon as 2018.
Read more about the Vaquita Porpoise
Tiger
The tiger has long been hunted for its distinctive patterned fur. Of the nine tiger subspecies, three are already extinct, many are endangered but it is the South China Tiger and the Sumatran Tiger that currently face the biggest threat to their survival.
Tragically, the South China Tiger is thought to be extinct in the wild as it hasn’t been spotted since the 1970s. The Sumatran Tiger is the only surviving tiger subspecies indigenous to Indonesia and as of 2008 it has been classified by the IUCN as Critically Endangered. Less than 500 of these tigers exist today in comparison with a population estimation of up to 1,000 in 1978.
The Rhinoceros
Three of the five species in the family of Rhinocerotidae, are among the most endangered species in the world: the Black Rhino, the Javan Rhino and the Sumatran Rhino. The Javan Rhino is the most threatened with extinction with the total population of only 60 surviving in one National Park in Java, Indonesia. The Sumatran Rhino is Critically Endangered. It has been estimated that less than 100 exist today in the wild. The Black Rhino is classified by the IUCN as Critically Endangered with three subspecies declared extinct in 2011.
Read more about the Black Rhinoceros
The Pangolin
Despite their tough appearance, these small, warrior built mammals are losing the battle against poachers and habitat loss. All eight species of pangolin are under threat, ranging from Vulnerable to Critically Endangered. They are the most trafficked animal in the world, hunted for their scales which can be sold on the black market for up to $3,000/kg.