East African springhare East African springhare The East African springhare ("Pedetes surdaster"), is not closely related to the hare, but is a member of the Pedetidae, a rodent family. "Pedetes surdaster" was recognised by Matthee and Robinson in 1997 as a species distinct from the southern African springhare "(P. capensis)" based on genetic, morphological, and ethological differences. "P. capensis" from South Africa has fewer chromosomes (2n= 38) than does "P. surdaster" which has (2n = 40) and some other genetic variations. The species was confirmed by Dieterlen in 2005. This species is found in central and southern Kenya and most of Tanzania. A
Equator 84 (World Geodetic System 1984) which is a standard for use in cartography, geodesy, and satellite navigation including GPS, also has an equatorial radius of 6,378.137 kilometres (3,963.191 mi). For both GRS 80 and WGS 84, this results in a length for the Equator of 40,075.0167 km (24,901.4609 mi). The geographical mile is defined as one arc-minute of the Equator, so it has different values depending on which radius is assumed. For example, by WSG-84, the distance is , while by IAU-2000, it is . This is a difference of less than over the total distance (approximately ). The earth