A talk about the horned frog

The movie "Single Man and Woman" made many mainland audiences aware of the existence of a baby brother for the first time, that is, the horned frog who played a full role as a promoter of love but died tragically under his body. So much so that many viewers are heartbroken and hope it can be revived lively.

As a pet frog, the horned frog is also known as the Lucky Frog. It reminds people of the Lucky Cat with its little paws that is often placed in the home. People give various kinds of sustenance to small animals and become emotional attachments, which are indispensable in modern life. The horned frog is a rare species and is recognized worldwide as a valuable ornamental frog. Like common frogs, it is an amphibian and its original habitat is in South America. Most of the hybrids sold on the market are South American horned frogs, while the most common purebred variety is the bell-horned frog. The most expensive one is the Amazon Horned Frog, also known as the King Horned Frog, which is worth tens of thousands. It is reported that there are almost no horned frogs breeding in the country, and most of the individuals sold are females. Males are smaller, up to about 10cm, while females are larger, about 15cm.

Due to differences in habitats and distribution locations, the markings and colors of horned frogs vary, but they are all adapted to the surrounding living environment. For example, the forest horned frog is green and the spiny-breasted horned frog is brown. The most distinctive feature is the soft fleshy horn-like protrusions above the eyes on both sides of its head. These protrusions are mainly the result of evolution in order to adapt to the natural environment and simulate the shape of fallen leaves. Because the native habitats of each subspecies of horned frog are separate and have little overlap, they can maintain relatively independent body colors. However, in recent years, artificial hybridization and improvement have produced many variant body colors, making it increasingly difficult to distinguish between subspecies. During the breeding season, the male will chirp to court a mate, and you can stimulate it to chirp by gently pressing its abdomen with your hand. The female frog will hardly chirp or will only emit a low guttural sound. As for the young frogs, it is difficult to distinguish the male from the female.

The horned frog has a short and fat body and a big mouth, which is almost half of its body. It is a delicious guy. In addition to preying on insects, they sometimes even feed on their own species, mainly preying on smaller frogs. Horned frogs like to "sit back and wait" for their prey, rarely moving or changing their posture, like a dedicated guard, and are ambush hunters. Because its visual reflection is incomplete and it can only see moving objects, it, like the familiar frogs, only captures moving insects and turns a blind eye to stationary objects. Nonetheless, a good sense of smell can help it sense smells and make up for its innate deficiencies. In addition, the eyes of the horned frog are located on both sides of the head above the head. The distance between the two eyeballs is relatively far. For nearby food, the overlapping range of vision is small and appears blurry. The oblate-shaped crystal lens is far away from the convex cornea of ??the eyeball, which helps Spot distant objects.

The larvae of horned frogs, which are also the tadpoles we have been familiar with since childhood, must live in water, while the adults that grow up need to live in a humid environment near water. This living state was formed during its evolution from aquatic to terrestrial. At the same time, the respiratory system also developed from gills to breathing with lungs and skin. However, the structure of its lungs is simple, and the oxygen it absorbs cannot meet the needs of the body. It must obtain oxygen through the skin, which accounts for two-fifths of the total respiratory volume, and the carbon dioxide produced is mainly excreted through the skin. After entering hibernation, it breathes almost entirely through its skin. Since dry skin cannot carry out effective gas exchange, moist skin is necessary for horned frogs to adapt to the environment and survive. This is why they like to live in moist, shady environments near water.

Tadpoles are omnivorous, and different species of tadpoles have different feeding habits. Generally, the species that live in lakes, ponds, and streams are mainly herbivorous; most of the tadpoles that live on the water surface or at the bottom of the water are filter feeders. Bacteria, plankton, and detritus are filter feeders as they breathe and the water enters the mouth. Some species of tadpoles have the habit of ingesting the corpses and eggs of their own species, such as the spiny-breasted horned frog, which can feed on the corpses of animals in the water and can also eat dead species of its own species. Artificial breeding shows that horned frog tadpoles also feed on bean cakes, wheat bran, earthworm meal, fish, animal offal, etc. Therefore, tadpoles mainly eat plant foods, supplemented by animal foods. Since tadpoles have the habit of feeding on the weak, more aquatic plants must be placed in the water for hiding, or they must be kept in isolation. Tadpoles grow quickly, and it only takes about a month to grow into horned frogs. It is also safer to raise young frogs in isolation.

For novices who like to keep amphibians, the horned frog is a good choice; but if you want to enjoy the fun of moving around, the horned frog is not a good choice. It only spends most of its time meditating and Meditate like a thinker.