Why do frogs hibernate? Why do frogs hibernate

Frogs hibernate to escape the cold. Frogs are amphibians, and their body temperature is affected by the temperature, and as the weather gets colder, their body temperature will slowly drop. When the temperature drops to a certain level, the frog hides in its burrow, does not eat or move, and sleeps to survive the winter.

Tips: Frogs are wild protected animals, and the protection of wild animals starts from themselves, refuses to buy and sell wild animal products, and does not interfere with the free life of wild animals. At present, the consumption of rare and endangered wild animals in society is not only a bad social habit, but also one of the reasons for the repeated prohibition of illegal hunting and killing of rare and endangered wild animals.

If there is no trade, there is no killing, and the consumption of wild animals is not eliminated, they do not belong on the table.

Frogs are amphibians, cold-blooded, and their body temperature is affected by the temperature. As the temperature gets colder, so does the frog's body temperature. When the temperature drops to a certain level, the frog burrows into the dirt, does not eat or move, and sleeps, which is called "hibernation", as a way to escape the cold and wait for the spring flowers to bloom before coming out to move.

It is a survival method for animals to adapt to the cold.

First of all, because the frog's living environment is in the pond near the water source, in winter, the insects will also decrease a lot, and the frog's food ** will be reduced a lot, and they will choose to use hibernation to spend the winter safely and consume less energy.

Finally, there is another reason that because ** is also a very important respiratory organ of frogs, frogs cannot be kept warm by regulating their body temperature like other animals, and can only choose to hibernate.

The larvae of frogs are called tadpoles, and their evolution is generally divided into the following three stages:

Clause. 1. Hatch from the eggs and become tadpoles;

Clause. Second, the limbs will gradually grow, and the tail will gradually disappear;

Clause. 3. It takes about three months to completely transform into a young frog.

First of all, frogs are oviparous animals, and they usually lay their eggs in advance and then wait for the fertilized eggs to hatch on their own. The hatchling frog larvae are tadpoles, black all over and with a small tail.

Secondly, tadpoles will initially rely on the nutrients in the egg cells to live, and as the tadpole grows up, it will gradually grow limbs, and the tail will gradually degenerate and disappear over time.

Finally, the process of transforming from a tadpole to a frog lasts about three months, and finally the tadpole will completely metamorphose into a young frog.

Frogs are amphibians and cold-blooded, and their body temperature will gradually drop as the temperature gets colder. When the temperature drops to a certain level, they freeze to death, and in order to survive, frogs burrow into the dirt and are in a state of suspended animation, as a way to escape the cold.

The reason why frogs hibernate is because frogs are unable to regulate their body temperature. When the weather is cold, the body temperature is too low, and the frog's movement becomes sluggish. And insects can't survive in winter, and frogs don't get enough food**.

So they hibernate to reduce their consumption and survive the harsh winter safely.

Scientists have conducted in-depth research on frog eyes and found that the retina of frog eyes is composed of three layers of cells: the photoreceptor cell layer, the intermediate contact cell layer, and the ganglion cell layer.

The photoreceptor cells in the first layer convert images of external objects into images on the retina and convert the images into electrical nerve signals. The second layer of contact cells is responsible for transmitting electrical signals to the third layer; The third layer of ganglion cells detects image features and codes these electrical signals to the brain. Ganglion cells are further divided into four categories, each of which performs a specific detection function and only responds to a certain feature of the moving target, identifying and extracting different features of the retinal image. In this way, a complex image is broken down into several easily recognizable features, improving the speed and accuracy of target discovery and identification.

Therefore, scientists call these four types of ganglion cells "detectors", which are "edge detectors", "convex edge detectors", "contrast detectors" and "dimming detectors". Taken together, the frog's eyes are particularly sensitive to both "fast-moving objects with rounded fronts" – insects that it likes to eat, and predators that are "fast-moving with large shadows". It does not respond to things that have no meaning to its existence, such as trees and blades of grass that do not move or shake.

The frog's eye can not only present images of the objects seen on the retina, but also analyze the images it sees, pick out specific image features, and then "communicate" to the brain through the optic nerve. After the "meticulous carving" of nature, this visual inspection system of frog eye has reached a very perfect point. The frog eye does not react to the background, but instead concentrates on moving relative to the background.

Moving, objects with specific morphological characteristics. As soon as the "shadow" of an insect or predator passes in front of its eyes, it immediately reacts by pounceing on food or escaping into the water.