Because the back of the head and neck of 黃 often There are wart-like protrusions, so some people call it Leap-headed Turtle in the folk.

Below, let's take a look at the introduction to the popular science of Yuan.

I. Morphological characteristics

1. Carapace: The back is relatively flat, the carapace is not raised, and it is round. Turtles do not have the horny scutellum like turtles, and their whole body is covered with soft skin. The lower back and abdomen of the skin are wrapped by bone plates, and the left and right sides are connected to form a special armor.

2. Body size: The body size is large, about 60 cm in length, and the weight can reach 30 to 40 kg.

It is said that some individuals can grow to more than one meter and weigh up to 100 kilograms, or even hundreds of kilograms.

3. Head: The head is blunt and flat, the snout is short and not prominent; the nostrils are small and located at the tip of the snout. There are tumor-like protrusions on the back of the neck.

4. Limbs: The limbs are flat and thick, with webs and toes, and the webs between the toes are larger.

2. Living habits

1. Habitat: Turtles inhabit inland, slow-flowing freshwater rivers and streams, and live in areas where deep pools and shoals combine.

2. Diet: carnivorous, mainly feeding on crustaceans, mollusks and fish. Turtles are nocturnal animals, they often swim to the shoal at night to feed on snails, frogs, shrimps, fish and other animals, and they have a huge appetite. Usually, they can eat food equivalent to 5% of their body weight at one time, and then they can stop eating for half a month. Eat again.

3. Predation: The scorpion is a kind of ambush predator. When preying, the scorpion will lurk on the edge of the water shoal, retract its head into the carapace, revealing only the eyes and beak. attack.

4. Dormancy: In November of each year, the tortoise will begin to hibernate underwater, and it will last until April of the next year for half a year. So how do you make sure you don't drown while hibernating underwater? Of course, it is the powerful breathing ability of the turtle. It can not only breathe through the lungs, but also through the skin and even the throat. How, isn't it amazing?

Three. Population Status

The scorpion is a first-class protected wild animal in my country, but it is on the verge of extinction. The reasons are as follows.

1. Its meat has high nutritional value, and its fat and bones can be used as medicine, so it is hunted and killed by people.

2. Due to people's discharge of sewage, its habitat has been destroyed and polluted, and its number has been greatly reduced to the brink of extinction.

Finally, I hope people can take it seriously and stop letting a species disappear in our eyes.