CATDOLL : CATDOLL: Are male or female snakehead fish bigger?

1. Is the male or female snakehead fish bigger?

Differences in body shape: Male snakeheads are generally slightly longer, while female snakeheads are shorter and rounder. During the egg-carrying period, the abdomen of female fish is more swollen than that of male fish.

2. Difference in caudal peduncle: The male fish is slightly thicker than the female fish.

3. Difference in pectoral fins: Careful observation reveals that the male fish's pectoral fins are slightly longer and pointed, and the first pectoral fin spine is thicker and harder. The female fish's pectoral fins are short and round, and the first pectoral fin spine is not too hard.

4. The difference in cloaca: Looking upward from the belly, the cloaca of male fish is small, narrow and concave, while the cloaca of female fish is large, slightly round and convex.

2. Which is bigger, male frog or female frog?

In nature, since females need to give birth to offspring, which requires more energy and materials, while males only need to mate, most females are much larger than males.

Some male animals are endowed with other instincts besides mating, such as defending territory, which requires a taller body shape, so among the common mammals we see, males are larger than females.

3. Are female locusts bigger or male locusts bigger?

Female locusts are larger.

Male locusts are relatively small in size, and their reproductive organs (the side with the excretion opening in the abdomen) are usually closed and pointed in shape; female locusts' reproductive organs are usually open and their bodies are relatively large. Male locusts are relatively small in size, and their reproductive organs (the side with the excretion opening in the abdomen) are usually closed and pointed in shape; female locusts' reproductive organs are usually open and their bodies are relatively large.

4. Does the female guppy have a big belly?

This is called "seed biting", mating! Note that the female fish will give birth after a few days when her belly becomes big. It should be kept alone, otherwise it will be eaten by other big fish. After the female fish gives birth to the small fish, the female fish should be taken away, and they will also eat the small fish. Habits Guppies are very adaptable, and the most suitable growth temperature is 22-24℃. They like slightly alkaline water with pH 7.2-7.4. They have a wide range of food, a gentle temperament, and are lively and active. They can be mixed with other tropical fish.

Guppies are easy to raise, but to obtain fish with bright colors and beautiful shapes, they need a large water body, more aquatic plants, fresh bait, suitable water quality and other environments from the fry stage.

The gonads of guppies are mature at 4 to 5 months of age, but their reproductive capacity is very weak. They can reproduce once a month in water with a temperature of 24°C and a hardness of about 8 degrees. The number of fry produced each time varies depending on the size of the fish, ranging from more than 5 to more than 100. Some fish can produce more than 200 fry.

When the female fish's abdomen swells and a noticeable black spot appears near the anus, it is a sign of impending birth.

5. What are the ten characteristics of a good female pigeon?

First, an excellent female pigeon must be strong, not too small, with full muscles and full of energy. It is not that a small body is bad, but if the body is too small, sometimes the pigeons will be bloated, sometimes the pigeons will be smaller, and some external characteristics will be distorted. After all, the female pigeon has a greater impact on the body shape of the offspring.

Second, the female pigeon should have a good performance in the competition. Excellent and stable performance in the competition indicates that the pigeon's orientation ability, nesting, physical fitness, recovery ability, etc. are all relatively good. Competition is an effective means to help us analyze the characteristics of pigeons.

Third, precocity. Generally speaking, whether the female pigeon matures early or not, the offspring it breeds will not mature early. In today's pigeon racing, precocity is considered an advantage, because many pigeons need to be trained and compete at a very young age. If they mature too late, they will not be mature enough in the future competitions, and naturally it will be difficult to achieve good results. Precocity generally means laying eggs early, molting early, and adapting faster.

Fourth, when breeding, the best situation is that the offspring can look similar to the pigeon itself, which shows that the pigeon's genetics are outstanding and can pass on good genes. And the offspring bred are also similar.

6. The voice of female frogs is not as loud as that of male frogs?

Every summer, you can often hear frogs croaking by the ponds, in the rice fields, and beside the ditches.

Especially during the breeding season, the male frog croaks loudly by the water, and the female frog comes when it hears the sound, and the two hug each other tightly.

The female frog releases eggs into the water, and the male frog releases sperm into the water as well. The eggs and sperm complete fertilization in the water.

The reason why the male frog's call is particularly loud is related to the structure of its mouth.

Deep inside the frog's mouth, there is a gap called the "glottis".

There are two vocal cords in the glottis.

When air rushes out of the lungs, it causes the vocal cords to vibrate, producing sound.

The male frog has a pair of vocal sacs on both sides of its mouth, which resonate with the sounds produced by its vocal cords.

Therefore, the calls of male frogs are particularly loud, which is one of the characteristics that distinguish male and female frogs.

Normally, when the male frog is not croaking, the two vocal sacs shrink and are not easy to detect.

It protrudes when it calls.

The two sacs of the rain frog are connected together to form a central sac.

When it makes a sound, it can swell to the same size as the body.

There is a kind of frog in South America. The male frog has a particularly large vocal sac, which contains many frog eggs.

These frog eggs develop here, and when they grow up, they jump out of their father's mouth.

There is also a kind of marsh frog whose two vocal sacs can suddenly swell when it croaks. It is said that it is used to scare away enemies.

Frogs mainly feed on agricultural pests.

Whether it is a flying borer, a jumping locust, a rice bagworm hiding in leaf rolls, a bollworm burrowing into cotton bolls, or a mole cricket hiding in a cave, as soon as they come out to move, the frogs will catch them immediately.

According to statistics, a frog can kill 17,000 pests every year if it catches insects for 7 months a year.

Therefore, people throughout history, both in China and abroad, have been particularly protective of this cute little animal.

On the roads in Switzerland, there are signs specifically for giving way to frogs, reminding drivers to be careful when driving and not to harm them.

7. Where can I buy ethinyl stilbestrol? Where can I buy ethinyl stilbestrol?

Ethylenestrol tablets are available in pharmacies or hospitals.

If the pharmacy is small, it may not have ethinyl stilbestrol tablets. It is recommended that you try to buy it in a larger pharmacy or hospital, because large pharmacies and hospitals can generally guarantee the authenticity of the product.

8. Top ten similar fishes?

1. Taimen

Maximum size: The maximum adult weight is about 50 kg and the length is about 2 meters

Habitat: There are five species in the world, distributed in northern Asia and the Danube River basin in Europe.

Ranking of endangered species on the World Wildlife Conservation Red List: Vulnerable

Population: Unknown

Main natural enemies: overfishing, environmental pollution

2. Mekong Giant Catfish

Maximum size: 118 inches (300 cm), 661.4 pounds (300 kg)

Habitat: Mekong River, Southeast Asia

World Conservation Red List Endangered Level Ranking: Highly Endangered

Population size: unknown, only one was caught in 2006

Main natural enemies: Overfishing, shrinking wild habitats

3. Mississippi spoonbill

Maximum size: 87 inches (221 cm) including head plate

Habitat: Mississippi River, North America

Ranking of endangered species on the World Wildlife Conservation Red List: Vulnerable

Population: The corresponding study in 2001 estimated that there were 1,353

Main natural enemies: overfishing, shrinking wild habitats, environmental pollution

4. European giant catfish

Maximum size: 197 inches (500 cm), 675 pounds (306 kg)

Habitat: Widely distributed in Europe and Asia

World Conservation Red List Endangered Ranking: Not Endangered

Population size: unknown, large

Main natural enemies:

5. Alligator Gar

Maximum size: 120 inches, 300 pounds

Habitat: Mississippi River, North America

World Conservation Red List Endangeredness Ranking: Not Included

Population: Large

Main natural enemies: None

6. Nile Perch

Maximum size: 79 inches (200 cm), 441 pounds (200 kg)

Habitat: Nile River Basin, Africa

World Conservation Red List Endangeredness Ranking: Not Included

Population: Large

Main natural enemy: environmental pollution

7. Giant Freshwater Stingray

Maximum size: 197 inches (500 cm), 1,323 pounds (600 kg), 95 inches (240 cm) without tail

Habitat: Mekong River, Southeast Asia

Ranking of endangered species on the World Wildlife Conservation Red List: Vulnerable

Population: Unknown

Main natural enemies: overfishing, environmental pollution

8. Arapaima

Maximum size: 177 inches (450 cm), 441 pounds (200 kg)

Habitat: Amazon River Basin, South America

Ranking of endangered species on the World Wildlife Conservation Red List: Data not available

Population: 2004 estimated value is 150,000

Main natural enemy: Overfishing

9. Australian Freshwater Cod

Maximum size: 79 inches (200 cm), 250 pounds (113.5 kg)

Habitat: Along the Murray River, Australia

World Wildlife Conservation Red List Endangered Level Ranking: Endangered

Population: Unknown

Main natural enemies: Overfishing, shrinking wild habitats

10. Siamese Giant Carp

Maximum size: 118 inches (300 cm), 661.5 pounds (300 kg)

Habitat: Mekong River Basin in Southeast Asia

World Conservation Red List Endangeredness Ranking: Not Included

Population size: unknown, only 10 were caught in 2000

9. Top 10 Anti-Cancer Fish?

The top ten anti-cancer fish are ranked as follows:

10. Crucian carp

Crucian carp, belonging to the genus Carp, has strong adaptability, but grows slowly. It takes about 2 to 3 years for a fry to grow to a weight of about 3 taels. Therefore, the wild crucian carp we usually see are relatively small. It is also the most anti-cancer fish, and many people often come here to visit.

10. Top 10 fish?

1. IOU

Also called meal stripes. Small in size, it is a primary freshwater fish and is common in low altitudes. It likes to live in groups in the upper layers of water in streams, lakes and reservoirs. Fishing is available from April to October, especially in the evening in summer. You can use a pull bait to float. Fishing spots: shallow waters of rivers and streams, where plant debris floats on the water. Water from the upper river flows into the lower river, and fish are happy under the waterfall. In the gaps between duckweed and water plants in tributaries or ditches. Where farmers wash vegetables and rice, these are all good fishing spots!

2. Upturned Mouth

Also called the pouting chain. It is a large, ferocious, carnivorous upper-layer fish that moves quickly, is good at jumping, has a violent temperament, and is easily frightened. You can use pull bait or rub bait to fish with floats, or you can use small fish or shrimp meat to hook and fish. It likes to live in shallow water, slow flow, water plants, and insects in river bays, lake bays, and harbors. It also often forages in waters where people wash vegetables and rice and water inlets.