Unfortunately, there are still many thousands of wild caught or farmed boas imported each year. Boa constrictors are ambush predators, so they often lie in wait for an appropriate prey to come along, then they attack.  When the female ovulates, a midbody swell can be noticed that appears similar to the snake having eaten a large meal. Their prey includes a wide variety of small to medium-sized mammals and birds. The greatest reliable age recorded for a boa constrictor in captivity is 40 years, 3 months, and 14 days. Please notice that these specimens are not for sale. The coloring of boa constrictors can vary greatly depending on the locality. The coloring works as a very effective camouflage in the jungles and forests of its natural range. It is a common sight in both zoos and private reptile collections. Captive life expectancy is 20 to 30 years, with rare accounts over 40 years, making them a long-term commitment as a pet. , The size and weight of a boa constrictor depends on subspecies, locale, and the availability of suitable prey. True Red-tailed Boa Constrictors for Sale in the United States.  They include: The subspecific name amarali is in honor of Brazilian herpetologist Afrânio Pompílio Gastos do Amaral. Females, the larger sex, more commonly weigh 10 to 15 kg (22 to 33 lb).  Clear sexual dimorphism is seen in the species, with females generally being larger in both length and girth than males. However, with captive breeding so common, as a result its very easy to find well established captive bred offspring. French Guyana, Guyana and Suriname (the former Dutch Guyana) are adjacent and not separated by natural obstacles which would hinder the migration or distribution of Boa c. constrictor. Suriname has been a Dutch colony until 1975 and was known as Dutch Guyana. In 2017, boa constrictors, along with Boa imperators and Burmese pythons, were found to contain a new set of sex determining chromosomes. Though all boids are constrictors, only this species is properly referred to as a "boa constrictor" – a rare instance of an animal having the same common English name and scientific binomial name. An introduced population exists in extreme southern Florida, and a small population on St. Croix in the U.S. Virgin Islands now appears to be reproducing in the wild. The usual size of mature female boas is between 7 and 10 ft (2.1 and 3.0 m) whereas males are 6 and 8 ft (1.8 and 2.4 m).  In some areas, they have an important role in regulating the opossum populations, preventing the potential transmission of leishmaniasis to humans. , The boa constrictor is a large snake, although it is only modestly sized in comparison to other large snakes, such as the reticulated python and Burmese python, and can reach lengths from 3–13 ft (0.91–3.96 m) depending on the locality and the availability of suitable prey.  The female then gives birth to young that average 15–20 in (38–51 cm) in length.  The Colombian rainbow boa (Epicrates maurus) was found to reproduce by facultative parthenogenesis resulting in production of WW female progeny.  These huge numbers of wild-caught snakes have put considerable pressure on some wild populations. An adult Suriname Red-tailed Boa (Boa constrictor), A juvenile Suriname Red-tailed Boa (Boa constrictor), Newborn Suriname Red-tailed Boas (Boa constrictor), A sub-adult Suriname Red-tailed Boa (Boa constrictor), Adult female Suriname Boa (Boa constrictor), Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). Furthermore, breeding Boa c. constrictor is also a greater challenge than other Boa c.  The litter size varies between females but can be between 10 and 65 young, with an average of 25, although some of the young may be stillborn or unfertilized eggs known as "slugs". It is commonly found in or along rivers and streams, as it is a very capable swimmer. B. c. constrictor reaches, and occasionally tops, the averages given above, as it is one of the relatively large subspecies of Boa constrictor.. As such, female boas in inadequate physical condition are unlikely to attempt to mate, or to produce viable young if they do mate.  During breeding, the male curls his tail around the female's and the hemipenes (or male reproductive organs) are inserted. Boa c. constrictor are the nominate species of the complex, meaning they were the first of the species type to be described by LINNAEUS in 1758. True Red-tailed Boas are often sought after because of their beautifully colored red tails, unique dorsal saddles and often pink or purple coloration along the sides of their bodies. Larger sized specimen occur rather seldom.  Pelvic spurs are the only external sign of the rudimentary hind legs and pelvis and are seen in all boas and pythons. In 2010, a boa constrictor was shown to have reproduced asexually via parthenogenesis. However, they have also been known to actively hunt, particularly in regions with a low concentration of suitable prey, and this behavior generally occurs at night. If you want to acquire a Boa c. constrictor Surinam SUPER Pokigron, you need to order in advance from the proposed offspring 2021. Try browsing the Boa Constrictors Index if you're looking for something specific.  The largest documented non-stretched dry skin is deposited at Zoologische Staatssammlung München (ZSM 4961/2012) and measures 14.6 ft (4.45 m) without head.  Boa constrictors also have two lungs, a smaller (non-functional) left and an enlarged (functional) right lung to better fit their elongated shape, unlike many colubrid snakes, which have completely lost the left lung.  The gestation period, which is counted from the postovulation shed, is around 100–120 days.  They generally breed in the dry season—between April and August—and are polygynous; thus, males may mate with multiple females.  Boa constrictors strike when they perceive a threat.  Half of all females breed in a given year, and a larger percentage of males actively attempt to locate a mate.
Advance order for a Suriname Super-Pokigron Boa c. constrictor: Boa c. constrictor Surinam SUPER Pokigron, Boa c. constrictor Suriname Pokigron for sale, Boa c. imperator Tarahumara Mexico for sale, Boa c. longicauda 100% hets for Zeros™ for sale. "Consecutive virgin births in the new world boid snake, the Colombian rainbow Boa, "The Discovery of XY Sex Chromosomes in a Boa and Python", "The Boa Constrictor Subspecies – Melanogaster", Herp and Green Iguana Information Collection, https://en.wikipedia.org/w/index.php?title=Boa_constrictor&oldid=987135948, Wikipedia articles needing page number citations from April 2018, Articles with dead external links from November 2016, Articles with permanently dead external links, Articles with incomplete citations from April 2018, Short description is different from Wikidata, Articles with unsourced statements from February 2016, Creative Commons Attribution-ShareAlike License, This page was last edited on 5 November 2020, at 03:53. Although hobbyists often will seek out specific traits in locality types such as Suriname’s with large “widow” peaks, or Guyanese boas with pick sides, the reality is that each locality is highly variable in color and pattern.
), All subspecies are referred to as "boa constrictors," and are part of a diverse group of New World boas referred to as "red-tailed" boas, comprising species of both boa constrictor and boa constrictor imperator.  The bulk of their diet consists of rodents, but larger lizards and mammals as big as ocelots are also reported to have been consumed. After this, the snake may not eat for a week to several months, due to its slow metabolism.
Other examples of sexual dimorphism in the species include males generally having longer tails to contain the hemipenes and also longer pelvic spurs, which are used to grip and stimulate the female during copulation. Their bite can be painful, especially from large snakes, but is rarely dangerous to humans.  This is the first time snakes were thought to contain male heterogamety, and since then has been found in ball pythons (Python regius) as well. Unconsciousness and death likely result from shutting off vital blood flow to the heart and brain, rather than suffocation as was previously believed; constriction can interfere with blood flow and overwhelm the prey's usual blood pressure and circulation. (Redirected from Suriname red tail Boa Constrictor) For other uses, see Boa constrictor (disambiguation). Today, most captive boa constrictors are captive-bred, but between 1977 and 1983, 113,000 live boa constrictors were imported into the United States.
As semi-arboreal snakes, young boa constrictors may climb into trees and shrubs to forage; however, they become mostly terrestrial as they become older and heavier.