The Rarest Animals On Earth : Top 5 endangered species
Face the extinction!
At least 33,000 species of plants and 5,400 species of animals are at risk of extinction, likely to disappear forever from the face of the Earth. These species are listed in the red list by the International Union for Conservation of Nature (IUCN).
Each extinct animal corresponds to a defeat for human beings, if we consider the root cause of these extinctions can be man and his huge and irresponsible lifestyle (hunting, pollution etc..) Let us see what are the rarest animals on earth to be considered extinct, or almost
1 The Pinta Island tortoise (Chelonoidis nigra abingdonii)
The last giant tortoise of the Galapagos island called Lonesome George died on 24 June 2012. However, first-generation hybrids have been found on Wolf Volcano in Isabela Island. As these specimens are juveniles, their parents may still be alive. Researchers at the University of British Columbia - Okanagan, Canada supported by the National Park Galapagos , have conducted studies on this species. Lonesome was found in 1972 by a Hungarian scientist, was quickly integrated into the breeding program, cohabiting for 15 years with a female tortoise of the adjacent Volcano Wolf. The eggs, however, turned out sterile.
2. Baiji (Lipotes vexillifer)
The Baiji is a freshwater dolphin that inhabited the Yangtze River in China , characterized by a long slightly upturned beak and low triangular dorsal, declared extinct in 2006, but sighted again on 30 August 2007.
The main threat to the survival of the Baiji is the enormous human impact on the ecosystem of the Yangtze river. More than 400 million people live in the river basin, and the banks are lined with large industries. Probably the main cause of mortality is due to incidental catches by nets and illegal fishing (electro-fishing which is banned in China two decades ago because it kills the dolphins, is still widely used along the Yangtze).
Other deaths are the result of collisions with boats, and underwater explosions.
3. The Vancouver Island Marmot (Marmota vancouverensis
This marmot lives only in the high mountains of Vancouver Island, British Columbia, Canada. Despite being endemic to this island, this has not prevented researchers to transfer it, to make reproduce successfully, in several captive breeding centers across Canada, to prevent its very high risk of extinction for the species.
Currently, there are 150 individuals in captivity, and about seventy in the wild. The Vancouver Island marmot is a kind of marmot very large, compared to others, with a weight between 3 and 7 kg and a length that can exceed 70 centimeters.
4. Seychelles sheath-tailed bat(Coleura seychellensis)
And one of the rarest mammals in the world, endemic to the Seychelles, which means it cannot be found anywhere else in the world. Lives in underpopulated areas of these islands, and it is believed there are more than 100 living specimens, mainly concentrated on Silhouette island.
Some time ago it was very common on the islands, but the mid to late twentieth century has witnessed a dramatic decline in their population. The reasons for its decline are not known. It is suspected that the introduction of the barn owl "Tyto Alba" was responsible for this decline.It is also believed that for the species to continue there must be at least 500 individuals, otherwise this boat will be doomed to extinction in a short time.
5. Javan Rhino (Rhinoceros sondaicus)
One of the three species of rhinos in Asia. The physical structure is similar to the Indian rhinoceros, but smaller with a length of approximately 3 meters and a weight ranging from 1400 and 1600 kg. It has a single horn, very short (about 30 cm).
It inhabits tropical forests, the western end of Java. This is the most endangered rhino ever . Today there are 65-70 living rhinos in the Ujung Kulon National Park (in 1970 there were thirty). According to the WWF, the last specimen of this species in Vietnam died in 2010, at the hands of poachers. The main cause of its extinction (almost) was hunting for its horn, used in traditional medicine
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