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The African spurred tortoise (Centrochelys sulcata), also called the sulcata tortoise, is an endangered species of tortoise inhabiting the southern edge of the Sahara Desert, the Sahel, in Africa. It is the largest mainland species of tortoise in Africa, and the third-largest in the world, after the Galapagos tortoise and Aldabra giant tortoise .
Centrochelys is a genus of tortoise.It contains one living species, the African spurred tortoise (Centrochelys sulcata), native to the Sahel and adjacent areas. A number of fossil species have been attributed to this genus, but their placement in the genus is considered equivocal.
The desert tortoise grows slowly, often taking 16 years or longer to reach about 20 cm (8 in) in length. The growth rate varies with age, location, gender and precipitation. It can slow down from 12 mm/year for ages 4–8 years to about 6.0 mm/year for ages 16 to 20 years.
Adult male leopard tortoise, South Africa Tortoise laying eggs Young African sulcata tortoise. Most species of tortoises lay small clutch sizes, seldom exceeding 20 eggs, and many species have clutch sizes of only 1–2 eggs. Incubation is characteristically long in most species, the average incubation period are between 100 and 160.0 days.
How long does it take a large desert tortoise to get to the other side of a southern Arizona highway? It’s still a mystery, after a state Department of Public Safety trooper recently helped ...
The tortoises are down from 15 different types of subspecies when Darwin first arrived to the current 11 subspecies. [147] Threats. Introduced mammals; Poachers; Destruction of habitat; Characteristics that make tortoises vulnerable Slow growth rate; Late sexual maturity; Can only be found on the Galápagos Islands; Large size and slow-moving [147]
Marginated tortoises grow very rapidly. In an ideal biotope, or with good handling, they gain 100–500 g (3.5–17.6 oz) yearly. This quick rate of growth lasts throughout their youth. After the 20th year of life, further growth is minimal. They may live between 100 and 140 years, according to the best estimates of scientists.
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