Top 10 Rarest Animals In The World

3) Sumatran Rhino: The Sumatran Rhino or the Asian Two-horned Rhino is recognizable by its hairy appearance is the rarest of the five remaining species of rhinoceros. Scientists estimate that there are fewer than 100 Sumatran Rhinos in the wild, with some saying there could be as little as 30 wild Sumatran Rhinos left. It is believed that Sumatran Rhinos have been a fairly vulnerable species for the past 9,000 years when a climate shift took place in their natural habitat. Since then, Sumatran Rhinos have failed to bounce back and face even more threats today. While there has been some success with breeding Sumatran Rhinos in captivity, in general, they have a hard time surviving outside of their natural ecosystem. Currently, there are still a few captive Sumatran Rhinos.