Appearance
The mole snake can grow to lengths of up to 2 m . A small head and pointed snout are said to be characteristics of the species. It has a firm, tubular body. Like the majority of the Colubrinae, ''P. cana'' is not venomous.In mature individuals, the body is mostly one colour, and may vary from yellow to brown to grey, and in some cases, solid black. The young have dark markings and spots that are gradually lost as the individual ages. Colour may be related to geography; in the south, most specimens are black, whereas specimens found in the northern part of their range are brown, reddish-brown, grey, or yellow.
Distribution
The range of the mole snake encompasses most of southern Africa. ''P. cana'' is common in Kalahari Gemsbok National Park. It is widely distributed, with a range stretching from Angola in the north to Kenya in the east to South Africa.Mole snakes live in the abandoned burrows of other animals. They can be found in a variety of habitats, such as the scrublands of the South African Cape and the Highveld plateaux and grasslands. Mole snakes have also been found in mountainous and desert areas.
Habitat
The range of the mole snake encompasses most of southern Africa. ''P. cana'' is common in Kalahari Gemsbok National Park. It is widely distributed, with a range stretching from Angola in the north to Kenya in the east to South Africa.Mole snakes live in the abandoned burrows of other animals. They can be found in a variety of habitats, such as the scrublands of the South African Cape and the Highveld plateaux and grasslands. Mole snakes have also been found in mountainous and desert areas.
Reproduction
The mole snake is viviparous, mating takes place in late spring , and the female gives birth to usually between 25 and 50 young, with as many as 95 possible. The young snakes are 20 to 30 cm in length at birth.Food
The primary food source of ''P. cana'' is golden moles , rodents, and other small mammals. For this reason, it is considered useful for the natural control of problem rodents.Its diet may also include the eggs of seafowl. At Robben Island, mole snakes were observed eating the eggs of ''Spheniscus demersus'' , ''Larus hartlaubii'' , and ''Numida meleagris'' . Juveniles were observed eating ''Strongylopus grayii'' .
The mole snake is a nest predator of ''Karoo prinia''. ''P. cana'' is one of at least six snake species which cause reproductive loss and decrease of nest success in ''Karoo prinia''.
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