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19-5-2019 BUMI HILLS, ZIMBABWE - SOUTHERN WARTHOG (Phacochoerus africanus ssp. sundevallii) PHOTO COURTESY OF MRS VALERIE FISHER
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The common warthog is a medium-sized species, with a head-and-body length ranging from 0.9 to 1.5 m (2 ft 11 in to 4 ft 11 in), and shoulder height from 63.5 to 85 cm (25.0 to 33.5 in). Females, at 45 to 75 kg (99 to 165 lb), are smaller and lighter than males, at 60 to 150 kg (130 to 330 lb).[4][5] A warthog is identifiable by the two pairs of tusks protruding from the mouth and curving upwards. The lower pair, which is far shorter than the upper pair, becomes razor-sharp by rubbing against the upper pair every time the mouth is opened and closed. The upper canine teeth can grow to 25.5 cm (10.0 in) long and have a wide elliptical cross section, being about 4.5 cm (1.8 in) deep and 2.5 cm (0.98 in) wide. A tusk will curve 90° or more from the root, and will not lie flat on a table, as it curves somewhat backwards as it grows. The tusks are not used for digging, but are used for combat with other hogs and in defense against predators – the lower set can inflict severe wounds.
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Common warthog ivory is taken from the constantly growing canine teeth. The tusks, particularly the upper set, work in much the same way as elephant tusks with all designs scaled down. Tusks are carved predominantly for the tourist trade in eastern and southern Africa.[citation needed]
The head of the common warthog is large, with a mane down the spine to the middle of the back. Sparse hair covers the body. Its color is usually black or brown. Tails are long and end with a tuft of hair. Common warthogs do not have subcutaneous fat and the coat is sparse, making them susceptible to extreme environmental temperatures.
As of 1999, the common warthog population in southern Africa was estimated to be about 250,000. Typical densities range between 1 and 10 km2 (0.39 and 3.86 sq mi) in protected areas, but local densities of 77 km2 (30 sq mi) were found on short grass in Nakuru National Park in Kenya. The species is susceptible to drought and hunting (especially with dogs), which may result in localized extinctions. The common warthog is present in numerous protected areas across its extensive range.
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