The thick turtle shell makes the tiger There is nothing you can do

The biggest characteristic of the black turtle is that it has swallowed half of its shell. The turtle shell is the black turtle's self-defense weapon, even if it has What harm can you do if you hide in a turtle shell? No creature would be stupid enough to start talking about a black turtle with its shell indented. Therefore, the hard shell of a black turtle can be called a treasure passed down by their ancestors. It is found in Tswana Mashatu in Africa. In the game reserve, a lion-turtle battle was staged. The lion bit and tore the black turtle, but in the end, the fierce lion actually fell asleep holding the black turtle.

The only one who can defeat the proud "King of the Forest", the lion, and overcome his misfortune by clever means is the black turtle. . Therefore, some people jokingly say that the black tortoise that makes the lion eat the soup is more "smart" than the black tortoise in the tortoise and the hare. Although the black turtle has strong hands and feet, it can only retract its neck, tail, hands and feet into its shell. The brittle and hard turtle shell is like the armor worn by soldiers to protect themselves. This is the result of the adaptive evolution of turtles.

Black turtles are specialized crawlers that have lived on the earth for tens of millions of years, similar to dinosaurs. It is an animal of the same era. The hard shell of the black turtle is mixed with the sternum and ribs of the spine. The horny scales of the epidermis and the bone plates originating from the dermis are combined to form a huge and solid surface. The turtle shell is divided into upper and lower halves. The upper half is the carapace that covers the back of the body, and the lower half is the plastron that supports the entire abdomen. The carapace and plastron are connected on both sides. The structure of the turtle shell not only effectively protects the soft body and vital organs of the black turtle, but also does not hinder its slow movement.

The main ingredients of turtle shells are calcium carbonate, bone glue, protein, etc., which are similar to bones, which makes turtles The shell has a certain hardness and good elasticity, which is the material condition for the solidity of the turtle shell. The structure of the turtle shell also contributes to its stability. The arrangement of the armor plates and the arched structure allow the turtle shell to bear greater weight.

On the surface of the bony inner layer of the turtle shell, there are horny scutes covering the surface.People say that the scutes are similar to human fingernails, which is very strange. These scutes and the bony plates formed by the underlying ribs form the turtle's carapace; the condition of the plastron is similar, except that the scutes are larger and fewer in number. The intersections of the scutes and the intersections of the bone plates are staggered with each other. This arrangement is like building a wall, which further enhances the thickness of the turtle shell.

In the cartoon, the little black turtle often breaks his shell because he runs too fast. If everything is abandoned, can this kind of scene really happen? The answer is yes, because the turtle shell is a part of the turtle's body and not a "clothing".

Of course, do you think the black turtle's shell will always be so brittle and hard, immune to natural enemies? That’s wrong. Some black turtles will experience symptoms of a disease called dry soft shell disease. Soft shell disease is very harmful to turtle shells. Soft shell disease in black turtles is also not uncommon. The most likely cause is lack of Calcium, domestic black turtles can also suffer from this disease. Therefore, if owners generally want to prevent and cure it, they should purchase and raise breeding turtles with good quality, try to prevent the growth of direct relatives of breeding turtles, and reduce the soft shell disease or abnormal symptoms of turtle hatchlings. break out. On the other hand, ensure adequate calcium. It is suitable for feeding shrimps to turtles, or it is suitable to add fish bone meal, shrimp shell powder, and crab shell powder to the feed. At the same time, Gao should allow the turtles to bask in the sun as much as possible. Both of these methods can keep your black turtle's shell crisp and firm.

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