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A 2013 phylogenetic study found that the plains zebra is more closely related to Grévy's zebras than mountain zebras. [14] The extinct quagga was originally classified as a distinct species. [ 15 ] Later genetic studies have placed it as the same species as the plains zebra, either a subspecies or just the southernmost population.
A 2018 DNA study found no evidence for a subspecies structure in plains zebras but, instead, observed a north–south genetic continuum. Modern plains zebra populations appear to have originated from Southern Africa around 370,000 years ago with plains zebras in Uganda, the most northern population, being the most distinct. [13]
Zebras appear to be a monophyletic lineage [10] [11] [12] and recent (2013) phylogenies have placed Grévy's zebra in a sister taxon with the plains zebra. [10] In areas where Grévy's zebras are sympatric with plains zebras, the two may gather in same herds [ 13 ] and fertile hybrids do occur.
In 2004, C. P. Groves and C. H. Bell investigated the taxonomy of the zebras (genus Equus, subgenus Hippotigris).They concluded that the Cape mountain zebra (Equus zebra zebra) and Hartmann's mountain zebra (Equus zebra hartmannae) are distinct, and suggested that the two would be better classified as separate species, Equus zebra and Equus hartmannae.
The zebras were being transported from Washington to Montana when the driver took the Interstate 90 exit for North Bend, located about 30 miles (48 kilometers) southeast of Seattle, to secure the ...
Trooper Rick Johnson, public information officer for Washington State Patrol District 2 in King County, said four zebras got loose on Interstate 90 near the North Bend exit. Zebras run loose on ...
Little is known about the quagga's behaviour, but it may have gathered into herds of 30–50. Quaggas were said to be wild and lively, yet were also considered more docile than the related Burchell's zebra. They were once found in great numbers in the Karoo of Cape Province and the southern part of the Orange Free State in South Africa.
The Iowa Department of Natural Resources confirmed zebra mussels, an invasive species, were found in Saylorville Lake. ... The invasive species have been found in 18 Iowa lakes and nine rivers.