While regularly thought about to be among the biggest snakes they space modest in comparison come the largest snakes. The maximum length attained by boa constrictors is 4m (13ft). The woman boa is usually larger than the males. The average size of a boa is 2-3m (7-10ft) because that females and also 1.8-2.4m (6-8ft) because that males.

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The woman boa constrictor will normally weigh 10 come 15kg (22-33lbs) with some specimens achieving weights of as much as 27kg (59.5lbs).

The colouring of the boa features a cream, brown or grey base colour. They then have actually brown or red spot on the earlier known as saddles. These saddles are much more pronounced as they relocate towards the tail.


The boa constrictor is a carnivore. The main prey item of the boa constrictor are small mammals. They will certainly take any pet though, i beg your pardon they deserve to fit in their mouths.


Scientific Name

Boa constrictor

Conservation condition

Not Evaluated


4m (13ft)


10-15kg (17.5oz)


Wild – 20 years

Captive – 35 year



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The boa constrictor is discovered throughout southern and central America. Lock can uncovered throughout Belize, Guatemala, Honduras, El Salvador, Nicaragua, Costa Rica, Panama, Colombia and also Ecuador. They also selection through Trinidad and also Tobago, Guyana, Belize, Suriname, French Guiana, Brazil, Bolivia, Uruguay and Argentina. Over there are additionally some populations on the islands off the coast off these countries.


While they can be uncovered in a selection of habitats such together semi-deserts, open savanna and also cultivated fields they thrive in dry rainforests. These areas administer cover and also the correct environmental conditions. Lock are knowledgeable swimmers and can consistently be discovered near body of water.


The boa constrictor will certainly breed throughout the dried season which is typically April come August. The male will wrestle for the ideal to mate the females. They room attracted by the odor the female emits from she cloaca. The female will certainly breed as soon as every 2 years.

After mating the female have the right to store the sperm for approximately a year. Once she ovulates the save sperm will fertilise the egg. Throughout this period the middle of the body swell come a similar size together if she has eaten a big meal.

After ovulation a melted will occur that is much longer than this. The gestation period of 100-120 work is then counted after ~ this. The female offers birth to 10 come 64 eggs with an average of 25. This young are independent within a couple of minutes.


The boa constrictor is a solitary species. They emerge mostly at nights but sometimes will bask in the sunlight throughout the day when it is colder.

The boa constrictor goes through a shedding duration occasionally. During this time oil under the skin lubricates that to relocate it off. This also builds up under the eye. This blocks their vision and leads come them ending up being inactive for a couple of days. During this duration they room also much more defensive.

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When young they are mostly uncovered in the trees but they move ago to the ground together they come to be older and heavier.

When eat boa constrictors do not suffocate their prey. Instead they squeeze in an effort to protect against blood circulation to the mind which sends the victim in to circulatory arrest.

Quick facts

The boa constrictor is regularly kept together a pet

Photo Credits

By Tod Baker native Tianjin, China (Constrictor Constrictor) , via Wikimedia Commons


National Geographic. 2020. Boa Constrictor. available at: https://www.nationalgeographic.com/animals/reptiles/b/boa-constrictor/> .

Stlzoo.org. 2020. Red-Tailed Boa Constrictor | Saint luigi Zoo. easily accessible at: https://www.stlzoo.org/animals/abouttheanimals/reptiles/snakes/redtailedboaconstrictor> .