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Not all EW species are rare. An example is the Brugmansia genus, where all seven species are widely cultivated, but none are found in the wild. [ 5 ] Ultimately, the purpose of preserving biodiversity is to maintain ecological function to prevent ecological extinction .
As of 2022, the International Union for Conservation of Nature (IUCN) listed 40 animal species as extinct in the wild. [1] That is approximately 0.04% of all evaluated animal species. The IUCN also lists five animal subspecies as extinct in the wild. This is a complete list of wild animal species and subspecies listed as extinct by the IUCN.
This page features lists of species and organisms that have become extinct. The reasons for extinction range from natural occurrences, such as shifts in the Earth's ecosystem or natural disasters, to human influences on nature by the overuse of natural resources, hunting and destruction of natural habitats.
Nearly all animal and plant species that have lived on Earth are now extinct, [227] and extinction appears to be the ultimate fate of all species. [228] These extinctions have happened continuously throughout the history of life, although the rate of extinction spikes in occasional mass extinction events . [ 229 ]
Extinct in the Wild (EW): captive individuals survive, and/or the species has been reintroduced outside its former natural range, but the species otherwise matches the criteria for "Extinct", such that no free-living, natural population is believed to exist. "Extirpated" is a term used for localized extinctions of extant species; it always ...
With the end of 2018 comes the near-certain reality that some critters, after millions of years of existence on Earth, are gone for good. There's little question that humanity's continued ...
Eight of the extinct bird species were found in Hawaii, including the Po`ouli, which was last seen in 2004. The Po`ouli is the most recently seen species of all 21 animals on the list.
The passenger pigeon, one of the hundreds of species of extinct birds, was hunted to extinction over the course of a few decades. As long as species have been evolving, species have been going extinct. It is estimated that over 99.9% of all species that ever lived are extinct.