Boa Constrictor
Boa constrictor (often specifically B. c. imperator or B. imperator depending on classification) • Order: Squamata, Suborder: Serpentes, Family: Boidae, Subfamily: Boinae, Genus: Boa, Species: Boa constrictor
Widely distributed throughout Central and South America, ranging from northern Mexico to Argentina, and found on various Caribbean islands.
Look up Boa Constrictor in the Snake Encyclopedia →Family
Order: Squamata, Suborder: Serpentes, Family: Boidae, Subfamily: Boinae, Genus: Boa, Species: Boa constrictor
Conservation
CITES Appendix II (vulnerable to trade). Generally listed as Least Concern or not currently evaluated by the IUCN, but threatened by habitat loss and the exotic pet trade.
Physical Description
Heavy-bodied snake with a triangular head and a dark line running through the eye. Features saddle-shaped markings along the back and smooth, iridescent scales. The eyes in this specific photo show blue clouding, indicating the snake is 'in blue' and about to shed.
Size & Dimensions
The specimen appears to be an adult. Typical adult length is 6 to 10 feet (1.8 to 3 meters), with rare individuals reaching up to 13 feet (4 meters).
Habitat
Extremely versatile, occupying rainforests, dry tropical forests, thorn scrub, and semi-deserts; ranging from sea level up to 1,000 meters. Often found in hollow logs or mammal burrows.
Diet & Feeding
Carnivorous generalist; consumes rodents, birds, lizards, and occasionally larger mammals. They are ambush predators that kill via constriction, halting the prey's blood flow.
Reproduction
Viviparous (gives birth to live young); typical litter size ranges from 10 to 65 neonates. Breeding occurs during the dry season.
Look-alikes
Often confused with Pythons (Pythonidae), but distinguished by the lack of pits on the labial scales and the presence of the prefrontal bone. Also similar to Candoia species.
Conservation Status
CITES Appendix II (vulnerable to trade). Generally listed as Least Concern or not currently evaluated by the IUCN, but threatened by habitat loss and the exotic pet trade.
Cultural Significance
Highly significant in pre-Columbian cultures (Mayan and Aztec) and vital for ecological balance by controlling pest populations. Extremely popular in the global pet trade.
Notable Features
Exhibits 'ecdysis' (the shedding process) in this photo, evidenced by the cloudy blue eyes. Unlike many other snakes, they possess pelvic spurs, which are vestigial remnants of hind limbs.