∆. Physical Description :-
The Mexican Beaded Lizard is one of two venomous lizards of the world. Though the beaded lizard is dangerous but it uses venom in fear to defense. The female mexican beaded lizard grow up-to 76 cm. in length and weigh 1.4 - 2 kilograms. But males are slightly larger, males can grow up-to 90 cm. and weigh is 4 kilograms.
The tail is the longest part of it's body, which is almost 50% of it's total body. The tail is the thick part. The leg is short and strong and the head of this species is flat and wide. In it's body there exist many small bead and it all surrounded by the hard scale in it's organ. Only in belly part is covered by the soft scale.
It has grooved teeth on it's jaws but in lower jaws we found the venom gland. Heloderma injects this venom when they bite. It also many colours in body when it changes into yellow colour then it turns in adult.
∆. Reproduction :-
The breeding season is in February and March and copulation lasts 30-60 minutes. About 2 months later, females lay 3-13 elongated eggs and bury them at a depth of about 12.5cm. The female then abandons the eggs. Incubation takes about 6 months. Each hatchling may be up to 20 cm long.
The Mexican Beaded Lizard has very few enemies besides humans, coyotes, and some raptorial birds. Having few natural enemies gives the hatchlings a greater chance for survival.
∆.Behavior :-
The species take a self-dug in a burrow at during the day time but at the night time it so active. In day time the species came out from his burrow only for 1 hour. When came out from the burrow it seems to go very slowly and clumsily but at night time it seems to be very aggressive.
The Mexican Beaded Lizard uses its venom not only to kill its prey, but also to subdue potential predators such as humans, coyotes, and raptors. The lizard also gapes and hisses to fend off its enemies. And it is so painful when it bite any prey or humans but it happens in rear cases.
∆. Food Habits :-
When the species growing and turned into adult the lizard is more carnivorous. The lizard tries to catch more prey for eat. The lizard eats small mammals, reptiles, lizard, bird's eggs, frogs, insects, birds etc. It swallow everything except the eggs which is broken before eat.
After reproduction the incubation period of female lizard is 165-215 days. The new hatch neonates are 5-6 inches in length and weigh is 40 grams. In their whole body of the every bead there subsist a small bones. It is dak in colour.
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