Questions about animal sweat glands and human sweat glands

Cats have sweat glands in them. The sweat glands of cats are underdeveloped and do not actively participate in the regulation of body temperature like human sweat glands, so no matter how hot the weather is, it is absolutely impossible to see cats sweating profusely. The heat dissipation of cats is through the radiation heat dissipation of ** or through breathing like dogs, but the efficiency of this heat dissipation is worse than sweating evaporation heat dissipation, therefore, although cats like warmth, but they are afraid of heat.

2.It seems that some cats also change their fur in the summer, and there are many animals with thick fur that also change their hair.

3.In mammals, artiodactyls and some carnivores do not have sweat glands. In the summer, when the temperature is high, I always squat in a shady place and stick out my tongue to pant to dissipate my body temperature.

When running, it regulates body temperature by panting and temporarily storing residual heat in the body. Others use a large amount of saliva to dissipate heat instead of sweating.

4.Hippos have no sweat glands.

First, it is doubtful whether humans evolved from higher primates, but a small number of scientists believe that humans evolved from sea beasts such as dolphins, which also have glands similar to sweat glands.

Second: If we insist that man evolved from Australopithecus, then the evolutionary process is.

1. Australopithecus walked upright and sweated more.

2. Mutants with increased sweating and increased sweat glands and decreased body hair are more advantageous.

The 3 million years of choice ended up with sweat glands all over the body, and hair thinning.

That's the process. It does not contradict the theory of evolution.

Evolve! It must be an evolution to something good! If animals don't have them, it means that they don't have sweat glands, and people have evolved, which shows that people are more advanced than animals! If you don't believe it, go check what kind of benefits it is to have sweat glands!

What's so bad about not having sweat glands! Okay, give me a point!

The so-called evolution is continuous upgrading!

An animal that does not have sweat glands is a chicken.

Both birds and mammals, to which chickens belong, are homeotherms. Homeothermic animals have a huge survival advantage, which is mainly reflected in the fact that higher body temperature can obtain more efficient energy utilization and exercise capacity, faster nerve conduction speed and faster reaction ability, as well as a more efficient immune system and the ability to resist microbial infections.

However, the huge survival advantage of constant temperature corresponds to a huge price, which is mainly reflected in two aspects: one is the huge energy consumption; The other is the huge thermoregulation of hunger pressure. The most direct consequence of the latter is that all homeothermic animals are afraid of both cold and heat.

In high-temperature environments, people mainly rely on sweating to dissipate heat and prevent heatstroke; But it was not found that any chicken could sweat. Without sweat glands and without the ability to sweat, chickens are naturally more sensitive to heat than humans.

Chicken Profile

The shape of the chicken resembles a bird, and it is divided into five parts: head, neck, body and wings, tail and legs, the head has a beak and a cockscomb, and the trunk has a pair of lobed limbs and wings, and it stands on both feet. The chickens are all covered with downy and feathers, with white, black, yellow, brown and other colors, and the feathers on the wings and tail are more pronounced.

Chickens are a creature that has been kept in captivity since ancient times. Chickens are the most commonly kept poultry by humans. Domestic chickens are derived from wild raw chickens and have been domesticated for at least 4,000 years, but it was not until around 1800 that chicken and eggs became mass-produced commodities.

It can be said that the chicken is a species that has survived with humans until now, and its history is very long.

Horses sweat through sweat glands, which are distributed throughout the body; Cattle sweat through sweat glands, which are distributed between the nose and toes; The sweat glands of dogs are on the tongue; Cats have few secretion glands, but it can radiate heat from the surface of the body as a means of dissipating heat instead of sweating (in terms of the body, cats have a much larger heat dissipation area than animals like humans), and there are cats whose abdomen will rise and fall rapidly, which is a manifestation of heat dissipation; Elephants rely on wide ears to dissipate heat; Foxes are the same as elephants; Chickens, ducks and other birds sweat through feces, and human sweat glands are mainly in the armpits; Other primates are similar to humans.

Most animals do not have sweat glands. The sweat glands of the sweating organs in animals are called the secretion glands, such as the sweat of horses, which are secreted from the secretion glands. Some animals such as cats have sweat glands, but only on the soles of the feet.

The sweat glands on the palms and feet have nothing to do with a drop in body temperature, they are just climbing for tree climbing. Chickens and ducks do not have sweat glands and naturally do not sweat. They dissipate heat directly by relying on the dense distribution of blood vessels on the inside of the wings.

Almost all birds flap their wings to dissipate heat. The buffalo is also used to dissipate heat. Dogs and cats naturally do not have sweat glands.

Lions, tigers, and cheetahs do not, and it must stop and rest for a long time, otherwise the temperature will rise sharply, which is very dangerous.

The dog doesn't, you see that it dissipates heat with its mouth wide open, and its tongue is full of water, which is how to dissipate heat. Other animals should have sweat glands, all as a result of natural selection.

The following defeat in the animal in the mountain, slippery as without sweat glands is ().

a.Chicken. b.Cat.

c.Dog. Correct Answer: a

Horses sweat through sweat glands, which are distributed throughout the body;

Cattle sweat through sweat glands, which are distributed between the nose and toes;

The sweat glands of dogs are on the tongue;

Cats have few secretion glands, but it can radiate heat from the surface of the body as a means of dissipating heat instead of sweating (in terms of the body, cats have a much larger heat dissipation area than animals like humans), and there are cats whose abdomen will rise and fall rapidly, which is a manifestation of heat dissipation;

Elephants rely on wide ears to dissipate heat;

Foxes are the same as elephants;

Chickens, ducks and other birds sweat through feces, and human sweat glands are mainly in the armpits; Other primates are similar to humans.