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More than 99 percent of all species, amounting to over five billion species, [7] that ever lived on Earth are estimated to be extinct. [8] [9] Estimates on the number of Earth's current species range from 10 million to 14 million, [10] of which about 1.2 million have been documented and over 86 percent have not yet been described. [11]
Although this may be an overestimate, this is likely the longest lived animal on Earth. [64] [65] [66] Specimens of the black coral genus Leiopathes, such as Leiopathes glaberrima, are among the oldest continuously living organisms on the planet: around 4,265 years old. [67] Giant barrel sponges can live more than 2,000 years.
Among animals, the largest species are all marine mammals, specifically whales. The blue whale is believed to be the largest animal to have ever lived. [7] The living land animal classification is also dominated by mammals, with the African bush elephant being the largest of these.
Emily Beech of BGCI said 38% of the world's trees are now threatened with extinction. ... Well-known trees such as magnolias are among the most threatened, with oaks, maple and ebonies also at ...
One in ten known species in the world lives in the Amazon rainforest. [47] This constitutes the largest collection of living plants and animal species in the world. [48] The region is home to about 2.5 million insect species, [49] tens of thousands of plants, and some 2,000 birds and mammals.
They are home to 40–75% of all species globally, including half of the world's animal and plant species, and two-thirds of all flowering plant species. Their dense insect population and variety of trees and higher plants are notable. Described as the "world's largest pharmacy", over a quarter of natural medicines have been discovered in them.
Depending on the species, they live in hollow trees or burrows. Pangolins are nocturnal, and their diet consists of mainly ants and termites, which they capture using their long tongues. They tend to be solitary animals, meeting only to mate and produce a litter of one to three offspring, which they raise for about two years.
Pygmies who live in Southeast Asia are, amongst others, referred to as "Negrito". There are many tribes in the rainforests of the Malaysian state of Sarawak. Sarawak is part of Borneo, the third largest island in the world. Some of the other tribes in Sarawak are: the Kayan, Kenyah, Kejaman, Kelabit, Punan Bah, Tanjong, Sekapan, and the Lahanan.