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Description
Boa Constrictor Imperator (BCI)
Boa constrictor imperator
Morph/Lineage: Red Ladder Tail (RLT)
Species Overview
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Size: Boa constrictor imperator typically reach 6–8 feet (1.8–2.4 m), with females generally larger than males. Adults usually weigh 15–30 pounds depending on genetics and husbandry.
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Appearance: The Red Ladder Tail (RLT) is a polygenic, line-bred trait selected for deep red tail pigmentation and a “ladder-like” pattern across the caudal saddles. This produces striking red tones that intensify with age, particularly under good husbandry. The body pattern remains variable but is often enhanced with cleaner contrast compared to wild-type boas.
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Distribution: The natural Boa constrictor imperator is found across Central and South America, ranging from Mexico through Colombia.
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Habitat: Wild BCIs occupy tropical forests, savannahs, scrublands, and riversides.
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Behaviour: Nocturnal ambush predators that feed on small mammals, birds, and reptiles. Juveniles often climb, while adults are more terrestrial.
Captive Care
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Enclosure: A naturalistic enclosure is recommended. Adults should be housed in at least a 6′ × 2′ × 2′ setup with climbing branches, cork bark, secure hides, and plant cover. Bioactive enclosures with soil substrate, leaf litter, and live plants help stabilize humidity and provide enrichment.
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Temperature & Humidity: Maintain a gradient of 80–85°F (27–29°C), with a basking spot of 88–92°F (31–33°C). Nighttime drops to 75–78°F (24–26°C) are acceptable. Humidity should remain 55–70%, with a water dish large enough for soaking.
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Diet: Juveniles feed every 7–10 days on small rodents; adults every 14–21 days.
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Behaviour in Captivity: RLT boas are hardy snakes that usually adapt well to captivity. They may show strong feeding responses but typically tolerate handling once acclimated.
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Special Considerations: While selective breeding has produced a wide variety of morphs, their core care requirements remain identical to standard Boa constrictor imperator.
Polygenic/Line-Bred Note
The Red Ladder Tail (RLT) is a polygenic, line-bred trait. Expression varies between individuals, with some showing more intense red tones or clearer ladder-like patterns than others. Selective breeding enhances these traits over generations, but RLT does not follow simple dominant/recessive inheritance.