Many animals are endangered today but there are a few animals that are on the brink of extinction and without our awareness, will be wiped off the face of this planet.
Few such animals are:
The Ivory Billed Woodpecker
The South China Tiger
The Northern White Rhinoceros
The northern white rhinoceros (Ceratotherium simum cottoni) is a subspecies of the white rhinoceros. This rhino is critically endangered or possibly extinct in the wild. This rhinoceros was once abundant throughout the eastern and central parts of Africa. In 1960, the population was estimated to be more than 2000 individuals. In 1984, the population was affected due to poaching and the population declined to 15 individuals. All the 15 individuals were present in Garamba National Park in the Democratic Republic of Congo. In 1993, the population rose to 30 individuals. Now only four of these rhinos are found in wild (Garamba National Park). These four individuals have not been spotted in recent years and may have been killed. If so, these animals would be extinct in wild apart from the efforts of Ol Pejeta Conservancy to introduce these animals back to the wild. In 2009, two Russian pilots claim that they spotted a few northern white rhinos in southern Sudan. A few individuals are present in zoos and sanctuaries around the world.
The Northern Sportive Lemur
The northern sportive lemur (Lepilemur septentrionalis) is one of the most rarest species of primate. This small lemur, the smallest of its family (lepilemur) is restricted to the northern tip of the island Madagascar. The estimated number is said to be below 100 individuals with none in wild. These lemurs are nocturnal. They are affected by deforestation due to charcoal production and hunting. The northern sportive lemurs inhabit dry, deciduous forests. In the early 21st century, there were a few thousands of these individuals and was rated as Vulnerable by the IUCN. Now, they are rated as 'Critically Endangered' by the IUCN.
Source of pic 1, pic 2, pic 3, pic 4