Python regius

Python regius is a nonvenomous python species found in Africa. This is the smallest of the African pythons and is popular in the pet trade. No subspecies are currently recognized. They are also known as royal pythons or ball pythons. The name ball python refers to the animal's tendency to curl into a ball when stressed or frightened. The name royal python (from the Latin "regius") is based in part on the story that Cleopatra supposedly wore the snake around her wrist.



Adults generally do not grow to more than 90–120 cm (3.0–3.9 ft) in length, although some specimens have reached 152 cm and even 182 cm (5–6 feet), but this is very rare. Females tend to be slightly bigger than males maturing at an average of 4-4.5 feet. Males usually average around 3-3.5 feet. The build is stocky while the head is relatively small. The scales are smooth and both sexes have anal spurs on either side of the vent. Although males tend to have larger spurs, this is not definitive, and sex is best determined via manual eversion of the male hemipenes or inserting a probe into the cloaca to find the inverted hemipenes (if male).

The color pattern is typically black or dark brown with light brown or gold sides and dorsal blotches. The belly is a white or cream that may include scattered black markings. However, those in the pet industries have, through selective breeding, developed many morphs (genetic mutations) with altered colors and patterns.


Geographic range

Found in Africa from Senegal, Mali, Guinea-Bissau, Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana, Benin, Niger and Nigeria through Cameroon, Chad and the Central African Republic to Sudan and Uganda. No type locality was given in the original description.



Prefers grasslands, savannas and sparsely wooded areas.



This terrestrial species is known for its defense strategy that involves coiling into a tight ball when threatened, with its head and neck tucked away in the middle. In this state, it can literally be rolled around. The python also has the tendency to hiss loudly when it feels threatened. Favored retreats include mammal burrows and other underground hiding places where they also aestivate. In captivity they are considered good pets, for their relatively small size and placid nature make them easy to handle. Captive bred adults rarely bite.



In the wild, the diet consists mostly of small mammals, such as African soft-furred rats, shrews and striped mice. Younger individuals have also been known to feed on birds. Pythons that are imported from the wild tend to be picky eaters and may not respond to food as well as captive-bred pythons, which usually do well on domestic rats and mice, either live, pre-killed, or frozen-thawed. The size of the prey item given to a python should be equivalent to or slightly larger than the width of the largest part of their body. This python is known for being a picky eater and may not eat for months, particularly during the winter breeding season. While this is not odd, care should be taken to watch that the snake does not experience significant weight loss. Parasites can also cause the snake to not eat. Other causes of not eating are stress caused by overhandling, or too hot or cold temperatures and not enough areas to hide in the vivarium.



Oviparous, with anywhere from 3-11 rather large, leathery eggs being laid (4-6 being most common). These are incubated by the female under the ground and hatch after 55 to 60 days. Sexual maturity is reached at 6–18 months for males, 12–36 months for females. Age is only one factor in determining sexual maturity and ability to breed – weight is the second factor. Males will breed at 500 grams or less, but in captivity are often not bred until they are 800 grams (1.7 lbs.), and females will breed in the wild at weights as low as 800 grams, though 1200 grams or more is most common--in captivity, breeders generally wait until they are no less than 1500 g (3.3 lbs.). Parental care of the eggs ends once they hatch, and the female leaves the offspring to fend for themselves


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