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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]
This is a collection of lists of mammal species by the estimated global population, divided by orders. Lists only exist for some orders; for example, the most diverse order - rodents - is missing. Much of the data in these lists were created by the International Union for Conservation of Nature (IUCN) Global Mammal Assessment Team, which ...
Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million in total. Animals range in size from 8.5 millionths of a metre to 33.6 metres (110 ft) long and have complex interactions with each other and their environments, forming intricate food webs .
The best-known source of many English words used for collective groupings of animals is The Book of Saint Albans, an essay on hunting published in 1486 and attributed to Juliana Berners. [1] Most terms used here may be found in common dictionaries and general information web sites. [2] [3] [4
This category has the following 20 subcategories, out of 20 total. Lists of animals by year of formal description (3 C) Lists of animals by location (10 C, 5 P)
List by taxonomic order Birds included # of quantified species / # of total species (%) 1 Example of less common species Example of more common species Accipitriformes: Hawks, eagles, kites. 178 / 252 (71%) Anseriformes: Waterfowl: ducks, geese, swans, teals. 125 / 177 (71%) Laysan duck : Mallard : Pop: 521 [14] Pop: > 17,000,000 [15 ...
Pages in category "Lists of animal species" The following 84 pages are in this category, out of 84 total. This list may not reflect recent changes. A.
The basic ranks are species and genus. When an organism is given a species name it is assigned to a genus, and the genus name is part of the species name. The species name is also called a binomial, that is, a two-term name. For example, the zoological name for the human species is Homo sapiens. This is usually italicized in print or underlined ...