Introduction: When it comes to poisonous reptiles, people's first impression is generally snakes rather than lizards, and in people's inherent impressions, there are only poisonous snakes and no poisonous lizards. But if you trace back to the roots, in fact, snakes are actually a branch of lizards, and the earliest ancient snakes were separated from the lizard family.
It is not difficult to find this evidence, and the Creator will inevitably leave some imprints when he puts a "bridge of evolution" between the lizard and the poisonous snake, which is the "Sheila poisonous lizard". Biologists have found by studying genes that the transition between lizards and venomous snakes is well confirmed in "Sheila's poisonous lizards".
<h1 class= "pgc-h-arrow-right" > "enlarged" gecko</h1>
The Sheila, also known as the blunt-tailed basilisk, is native to the southwestern United States and northern Mexico and operates below 1600 meters above sea level. The Sheila is the largest known lizard in the United States, with a body length of 37 to 45 cm and a weight of 0.9 to 1.2 kg. Although it is not long, it is very stout, like an enlarged version of the gecko.
The head and limbs of the Sheila's body are covered with black scales, and the other parts are covered with yellow or orange gorgeous patterns, so the combination gives people a strong color impact, and it will feel that this is not a good guy! And as they age, the shape of the pattern on their bodies changes, which is very rare among reptiles.
<h1 class = "pgc-h-arrow-right" > terrible venom</h1>
Compared to the monitor lizard, the Sheila poison lizard is far less in size, so it relies on the terrible venom to win the enemy. The venom of the Sheila's poison lizard is a neurotoxin that, when it enters the organism's body, begins to invade the lymphatic system, and if the neurovironment enters the heart through the lymph, the victim dies.
The venom of the Sheila's poison lizard is hidden in the venom glands of the jaw, and after biting the prey, the venom will first enter the lizard's mouth and then gradually enter the prey through the teeth.
During this time, Sheila's poison lizard must bite its prey to death and not let go until the prey is paralyzed by venom. It is obvious that this method of predation is very similar to that of poisonous snakes, but it is not as good as poisonous snakes.
Venomous snake hunting is more efficient and safer, and most venomous snakes will immediately release their mouths after biting their prey when hunting, so as to avoid the prey hurting themselves when they are struggling. From this point of view, the original predation method of the Sheila viper is not as advanced as that of modern vipers.
< h1 class= "pgc-h-arrow-right" > the reproduction of the Sheila basilisk</h1>
Sheila lizards inhabit deserts and spend most of their lives in underground burrows, leaving their nests only when they are foraging.
The venomous lizard moves slowly, has difficulty catching faster prey, and generally feeds on the cubs or eggs of rodents and birds. If they can, they will also kill small lizards or snakes.
The poison lizard is a long-lived lizard that can live up to 30 years, and a zoo in the United States has artificially bred a female individual for 18 years.
Sheila's poison lizards mate and reproduce in July and August every year, their entire mating and spawning is done in underground caves, compared to other reptiles, The yield of The Sheila poison lizards is not large, about 4-8 eggs are laid at a time, and after ten months of natural temperature hatching small lizards can come out of the shell.
<h1 class= "pgc-h-arrow-right" > what happens to a person when a Sheila's lizard bites a person</h1>
In the United States and Mexico, very few people are killed by Hila's poisonous lizard bites each year, because it is easier to spot The Sheila's poisonous lizard than the insidious poisonous snake, thus largely avoiding injury. Of course, discoveries return to discovery, but there are still some people who are inevitably bitten.
Those who are bitten will have to suffer some hardships, because the Sheila taramander will bite you to death, during which time the wound will worsen and cause extensive bleeding. If not treated in time, the victim will soon suffer from symptoms of poisoning such as paralysis, lethargy, shock, and vomiting.
However, because the toxicity of the Sheila poison lizard is relatively "gentle", once bitten, it is usually not life-threatening as long as it is treated in time.
<h1 class = "pgc-h-arrow-right" > the current status of the Sheila basilisk</h1>
The conflict between man and nature is always difficult to balance, due to the destruction of the habitat of the poison lizard by human activities, coupled with their own slow reproduction. At present, both the Sheila and the streptre lizard are on the verge of extinction.
Although the United States has been studying the reproduction of the Sheila basilis lizard for at least 30 years, it is still very difficult to solve the problem of the reproduction of the Sheila lizard, and the current effect of artificial breeding of Greek poison lizards is not ideal.
At present, humans face many difficulties in breeding this lizard, especially in terms of its indistinguishable male and female. For other lizards and snakes, humans can easily distinguish between male and female through sex probes and other simple ways, but for this lizard, it is difficult to distinguish male and female by common methods.
Although it has been suggested that the males are thicker and have a wider head, and the females are slender and usually pear-shaped, the accuracy of this method is low due to the fact that there is no obvious difference in appearance between the two sexes of the Sheila, and multiple comparisons must be made to reach conclusions.
At present, in addition to DNA testing, the best way is to use ultrasound to look for ovaries or testes in the body, and if humans can no longer find a way to breed poisonous lizards, they are likely to become extinct.
Continuing the population of the Sheila venomous lizard is important because it is a transitional stage in the evolution of lizards to venomous snakes, an important part of animal evolution, and studying this lizard allows us to grasp the production and evolution of snake venom and the history of venomous snakes.