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Description
Boa Constrictor Imperator (BCI)
Boa constrictor imperator
Morph: Motley Het Albino
Species Overview
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Size: Boa constrictor imperator typically grow 6–8 feet (1.8–2.4 m), with females often larger than males. Adults usually weigh 15–30 pounds depending on genetics and husbandry.
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Appearance: This boa expresses the Motley trait, a co-dominant mutation that produces connected saddles, striping, or reduced patterning. It is also Het Albino, meaning it carries but does not visually display the recessive Albino gene. Outwardly, it appears as a Motley boa.
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Distribution: The natural Boa constrictor imperator is found throughout Central and South America, ranging from Mexico through Colombia.
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Habitat: Wild BCIs inhabit tropical forests, scrublands, savannahs, and river systems.
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Behaviour: Nocturnal ambush predators that feed on small mammals, birds, and reptiles. Juveniles may climb regularly, while adults are primarily 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 secure hides, cork bark, climbing branches, and plant cover. Bioactive setups with soil-based substrate, leaf litter, and live plants are excellent for stable humidity and 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 large water bowl provided 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: Hardy boas that generally adapt well in captivity. They may display strong feeding responses but usually tolerate handling with consistent care.
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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.
Genetics Note
The Motley Het Albino involves:
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Motley (co-dominant): Produces connected saddles, dorsal striping, or reduced patterns.
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⚠️ Note: The homozygous form (“Super Motley”) is generally considered fatal in boas and does not produce viable offspring.
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Het Albino (recessive carrier): Carries but does not visually display the Albino trait.