6/12/2023 0 Comments Red tailed boa constrictorIn addition, they can detect both vibrations in the ground and sound vibrations through the air through their jaw bones.Their tongues flick continuously, bringing odor molecules into contact with the chemosensory (vomeronasal) organ in the top of their mouths. Boa constrictors have good vision, even into the ultraviolet spectrum. They are nocturnal however they may bask during the day especially when night-time temperatures are low. Up to 60 young are born, about 30-40 cm at birth. Fertilized ova are retained in the female's body for incubation. When ready to mate, the male inserts one of his two hemipenes into the female's cloaca. He uses them to stimulate the female by scratching her body, especially around the cloaca. The male's spurs are longer than the female's. Both the male and female have a pair of spurs, one on either side of the cloaca. Boas are considered to be primitive snakes. Males are polygynous, mating with more than one female. This places a great physical demand on females and a period of recovery is needed after the birthing process to restore fat reserves. Boa constrictors are ovoviviparous embryos develop within their mothers' bodies. ![]() Females do not necessarily reproduce annually. ![]() During this period the female emits a scent from her cloaca. This generally takes place in the dry season. Seasonal changes trigger breeding behaviour. Sexual dimorphism (difference between males and females) includes females generally being larger in body length and girth, whereas males generally have longer tails (containing the hemipenes) and longer cloacal spurs (vestigal hind legs). This new world snake has an average length of two to three metres while the largest ever recorded was 5.5 m. Sharp, long teeth are found on both the upper and lower jaws and curve backward towards the throat. Boas have two functional lungs, the right much larger than the left, to match their elongated body shape. However, there are many variations on appearance. ![]() Third, this dark triangle is continued behind the eye, where it slants downward towards the jaw. Second, there is a dark triangle between the snout and the eye. First is a line that runs dorsally from the snout to the back of the head. The head of a boa constrictor has three distinctive stripes. They may have smaller dark spots over the entire body. Along the sides, there are rhomboid, dark marks. These saddles become more colorful and prominent towards the tail, often becoming reddish brown with either black or cream edging. Dorsally the background color is cream or brown and that is marked with dark "saddle-shaped" bands. Boa constrictor coloration and pattern are distinctive.
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