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Frogs that evolved use their lungs to breathe, but can also draw oxygen from the air through moist **. The various pigment cells in it will spread or shrink with the height of humidity and temperature, resulting in a change in skin tone. Frogs are commonly found in the grass along rice paddies, ponds, ditches, or rivers, and sometimes lurk in the water.
It usually comes out at night to hunt.
The frog in the summer also likes to sing loudly, it generally hides in the grass, occasionally shouts a few times for a short time, and often a call will attract many frogs next to it, as if it is singing. Frogs are usually the happiest after heavy rains. At its happiest moments, dozens or even hundreds of frogs croaked endlessly, and the sound could be heard for miles away, like a majestic symphony.
Their choruses are not sung indiscriminately, but have certain rules, including lead singing, chorus, unison, accompaniment and other forms, which cooperate closely with each other, and are worthy of the name. Frog.
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Frogs are amphibious animals that usually inhabit the grass along rice paddies, ponds, ditches, or rivers, and sometimes lurk in the water. When I was a child, I could only live in the water, but when I grew up, I could live on land. They hibernate in the bottom of the water or in burrows in late autumn when the weather gets colder, and return to the water to breed when the weather warms up the following spring.
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The habits of frogs are: suitable temperature, high environmental humidity requirements, fear of direct sunlight, etc.
1. Suitable temperature
Frogs are ectotherms.
Body temperature changes with changes in the outside temperature. Under natural conditions, the suitable temperature for frog growth is 20-30, and the optimal temperature is 25-28. When the winter temperature drops below 10, feeding and activity gradually decrease. When it drops below 5, it burrows into a cave or hibernation in the silt at the bottom of the pool.
The following year, hibernation ends in early spring when the temperature rises.
2. High environmental humidity requirements
Humidity is an important factor in the survival and growth of frogs, because frogs do not have a tissue structure that protects water evaporation in the body.
It is obviously not enough to rely on the mucus secreted by ** glands to eat the humidity on the body surface. Therefore, the frog's habitat should be both a pond with water and a weed.
Raw, warm and humid environment.
3. Afraid of direct sunlight
Frogs are nocturnal and afraid of direct sunlight, but tend to have weak light, and usually prefer to inhabit sunny and shaded grass. Light has a promoting effect on the metabolism, growth and reproduction of frog body, such as living in the dark for a long time, its gonads are difficult to develop and mature, and even stop laying eggs and ejaculation.
Characteristics of frogs
1. Frogs sleep with their eyes open, frogs have strong night vision, frogs cannot live in the sea or any salty water.
2. The average lifespan of frogs is between 10-14 years old, and not all frogs have webbed toes. The frog's ears are called the tympanum, just behind the eyes.
3. Frogs except Antarctica.
It can be found everywhere on Earth. Each species of frog makes its own unique sound.
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Frogs are a very common animal, they are amphibians, and there are many species. There are also a lot of habits. Let's talk about the living habits of frogs.
Enumerate: 1: The frog is an amphibian and an ectothermic at the same time.
Body temperature changes with the environment. Frogs usually use their lungs to breathe, and they also use their ** to absorb oxygen. When winter comes, their activity decreases, and they enter a so-called hibernation state, and the following spring, when the temperature rises, the frogs end their hibernation.
They usually inhabit ponds, rivers and rice paddies, and they generally do their activities at night.
2: Predatory habits: They are omnivorous animals, feeding on insects and the like, which tend to be pest-based, and also feed on small fish, dried shrimp and the like.
Their predatory ability is also relatively strong, and the insects that are almost targeted by them are basically unable to run. Almost 70 insects or other food can be caught in a day.
3: Reproductive habits: Frogs are dioecious, complete reproduction in water, and belong to oviparous animals.
They generally breed around mid to late April. The eggs of these frogs eventually turn into tadpoles. After about two months of growth and development, these tadpoles slowly turn into frogs, and in the process of becoming frogs, the tail will slowly disappear and the length of the body will be shortened.
Then it's time to move on land. In general, frogs can reproduce in about 3 years.
4: Singing habits: Frogs can make some sounds from their mouths because they have something bulging around their mouths. In the summer they chirp the most, and in the hot days they hide in the shade and occasionally chirp, and in the evening or on rainy days.
The frequency and duration of their chirpings increases, especially after heavy rain, and they tend to be particularly loud and cheerful, often hearing them from a distance.
Tadpoles turn into frogs.
After the frog lays its eggs at the water's edge, after a period of time, the eggs hatch into tadpoles and feed on the algae and plankton in the water. After about a month and a half, the base of the tadpole's tail begins to swell, and after a week, hind legs grow, and then the forelimbs begin to take shape, and the tail shortens at the same time, at which point the little tadpole becomes a small frog. The frog's body is short and flat, without a neck and tail, the eyes are protruding, moist and smooth, and the hind limbs are long and strong, and they are good at jumping. >>>More
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The famous aphorisms for protecting frogs are as follows. >>>More
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