Can hamsters see in the dark? Hamsters' sense organs (vision, hearing, smell and touch)

Not many owners of small furry rodents have thought about how hamsters see. Different breeds differ not only in size, weight and color. Dzungarians see the world in black and white. Other breeds can see the world around them more clearly. Wild hamsters are more vigilant, as this helps them survive outside the comfort of their home. Insufficiently sharp vision is compensated by developed sensory organs. Let's take a closer look at how hamsters see our world.

Cognition through vision

Many people are interested in how Syrian hamsters see? The eyesight of fluffies cannot be called sharp. This is due to the gradual transition to a nocturnal lifestyle. Representatives of this type of animal can safely be called myopic, since at a distance of more than a meter in front of them they can no longer distinguish objects, only their faint outline. Thanks to this, the fluffies coordinate their movements well and do not run into objects blocking their path.

Interesting facts about hamsters

Hamsters are wonderful pets. These are playful, active, cute rodents who enjoy care, affection, and games with their owner. About 25 breeds of animals have been bred in the world, differing in size and appearance. Many amazing and unexpected stories can be told about large European, tiny dwarf, wild American, and popular Djungarian hamsters. Below are the most amusing and interesting facts about these wonderful and cute pets.

  1. The largest breed is the European hamster. The length of its body reaches 30 centimeters. And the smallest rodent is the dwarf hamster. It rarely grows more than 10 centimeters. But they live much longer than other breeds: up to four years!
  2. The animals have a unique ability: they can store uneaten or found food behind their cheeks for quite a long time in special bags in order to eat it later. Animals can easily hold food in their mouths, the weight of which reaches 20% of their body weight!
  3. The most popular and widely bred breed is the Syrian hamster, which is brown in color with a golden tint.
  4. Some breeders call male rodents hogs, and females sows. Although their pets have nothing to do with pigs.
  5. Hamsters have been known for a long time. This biological species was first discovered in the semi-deserts of Syria. But the animals got their name from the German word “hamstern”, which means “to accumulate, store up”.
  6. Hamsters' vision is poor and colorless. Therefore, in studying the world around them, they rely more on a keen sense of smell and excellent hearing.
  7. Rodents have special glands on their bodies that secrete an odorous secretion. Animals use this liquid to mark the road.
  8. Hamsters' incisors, like those of all other rodents, grow throughout their lives and require grinding down with rough food. And the cubs are already born with teeth.
  9. Animals can climb mountains to a height of up to four kilometers. They are also excellent swimmers, drawing in air with their cheek pouches and using them as air mattresses.
  10. The owner must build a running wheel in the pet’s cage. The hamster is so nimble and agile that it can cover a distance of 10 kilometers in a wheel overnight!
  11. Almost all Syrian hamsters existing today are descendants of a single female. In 1930, she gave birth to 12 cubs, giving birth to the breed.
  12. The habitat of wild rodents is rapidly declining, so many populations are on the verge of extinction. The Syrian hamster and its close relative, Newton's hamster, are already listed in the Red Book as an endangered species.
  13. Sex cells from males of the Chinese breed are used in pharmaceuticals to produce drugs against serious diseases, including oncology.
  14. In Vietnam, it is legally prohibited to breed and keep hamsters as pets. They are believed to carry many dangerous infections. Disobedience to the law results in heavy fines.
  15. Representatives of the forest North American species love to store shiny objects they find in their burrows: buttons, brooches, beads, coins. When they take a thing, they usually put a pebble or a stick in its place, as if exchanging.
  16. Hamsters just look stupid and awkward. In fact, they are smart, agile and quick-witted creatures. Pets respond to a nickname, remember their cage neighbors and relatives, and can easily learn several tricks.
  17. One year of a hamster's life is equal to almost 25 human years. It's a pity that furry pets live so short.
  18. Pregnant females of some dwarf breeds have the ability to delay childbirth if they have not yet nursed cubs from a previous litter.
  19. The assumption that hamsters are social animals is incorrect. In fact, they prefer to live alone and do not tolerate other individuals nearby. If you place several males in one cage, a fight with a bloody and even fatal outcome is inevitable.
  20. It is also incorrect to believe that hamsters eat only plant foods. In their natural habitat, animals often feast on insects, and at home they can be given boiled chicken or lean fish.

What contributes to understanding the world?

Having received a complete picture of the vision of hamsters at night and during the day, another logical question may arise: what helps the animal understand the world and how does it navigate in space? After all, he can easily find in the cage a feeder and a drinking bowl, a place to sleep or other attributes purchased specifically to create the most comfortable living conditions for him. Since during the day vision plays far from a decisive role, we should remember the well-developed organs of hearing and touch.

Hamsters have their own “visibility” of the world, here are several ways of seeing it:

  • vibrissae - thick whiskers, usually located on both sides of the nose. The mustache grows from the hair follicle, which has a huge number of nerve endings. With its vibrissae, a hamster can easily feel nearby objects and dodge in time if this object turns out to be dangerous for it;
  • scent glands. It is the sense of smell that helps to distinguish alien representatives of the species by smell; each animal has iron tubules from which this smell is released. They mark their territory by rubbing against the cage, its bars and bedding.

Still, hamsters can remember exactly where certain objects are located in the house when they move in a walking ball.
And a dim light left overnight may seem very comfortable to the animal, for which it will only be grateful to the owner. The amazing features of the life of hamsters make a person wonder whether the animal is so comfortable with all its innate nuances of vision, etc. To which we can say with confidence that this is surprising only for humans; the Djungarian or Syrian himself feels very good, especially if he is in good, caring hands.

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Can they see in the dark

The visual features of the described rodents are explained by their way of life in the wild. They are born and spend most of their time in a burrow underground. They are nocturnal. In search of food, animals emerge from their underground homes after dark. At this time they see more clearly. But sunlight blinds them and causes discomfort. Therefore, during the daytime, rodents try not to stick their noses out of the hole.

Important! Due to the fact that the hamster is nocturnal, experienced breeders advise purchasing this pet in the evening. It is during this period that the animal is most active, and it is possible to more accurately determine whether it is healthy or not.

What kind of vision do hamsters have?

You can often come across the opinion that hamsters have poor eyesight. Nature has endowed these rodents with sufficient vigilance to notice danger in time. However, they do not see a clear picture. These animals are shortsighted. Therefore, even at a short distance they can view objects in a blurry form. Animals see more or less clearly at a distance of up to 1 m.

Depending on what species the rodent belongs to, its viewing angle depends. Thus, one of the largest representatives of the hamster family in terms of body size, the Syrian or Central Asian hamster, has larger eyes than, for example, the small Djungarian. Therefore, his field of vision is wider.

Did you know? To make a supply, the hamster stuffs food into organs specially designed for this purpose - the cheek pouches. In them, the animal can save food, which weighs 2 times more than its entire body.

At the same time, visual acuity is the same in all breeds, be it a “jungarian” or an Angora fluffy. True, there is an opinion that wild animals see a little better, since they need to protect themselves from enemies and dangers, as well as get their own food every day. As for the color spectrum, hamsters distinguish between yellow and green.

Temperature for keeping hamsters

Ideally 17-20 °C. Air humidity 40 - 70 percent. High humidity negatively affects the heat exchange of living beings. Dry air is also dangerous - if the cage is located less than 2 meters from the battery. As a result, the animal may develop metabolic disorders.

A hygrometer will help keep the situation under control. Think about your pet in advance when ventilating the room so as not to leave him in a draft.

Before getting a hamster, you need to think about its needs in advance. The first thing you need to do is buy a suitable home for your future pet. Many people rely on the opinion of the seller at the pet store, but in vain. After all, the wrong choice not only threatens constant stress for the rodent, but can also lead to injury.

Sense organs of a guinea pig

Read first: Encyclopedia reference book: All about pigs

Hearing

The cochlea of ​​the inner ear in a guinea pig has four turns, but in mice and rats, even in humans there are only two and a half. Thus, guinea pigs have relatively more space for auditory cells, resulting in particularly good hearing. If a person can perceive sounds from 20,000 Hz (child) to 15,000 Hz (adult), then guinea pigs perceive sounds with a frequency of up to 33,000 Hz.

Smell

Guinea pigs' sense of smell is focused primarily on contact with each other and on sexual behavioral norms. For example, their urine plays an important role in marking. Thus, males who are ready for mating inject urine, females who are not in heat, along with hostile behavior, use scent to demonstrate to the male that they are not ready for mating. Guinea pigs rely primarily on their sense of smell. Guinea pigs in a social community recognize each other by smell. This applies not least to the loss after re-identification of young animals. It was noted that this group-specific identification, after repetition for several days, disappears in adult animals. Marking territory with secretions, as well as urine, explains why guinea pigs feel at ease in their familiar environment and are very restless and insecure in an unfamiliar one. This later manifests itself in their timid behavior. Compared to humans, guinea pigs have a heightened sense of smell. It is about a thousand times more developed than in humans. Thus, they perceive a variety of odors that are not noticed by people at all, and therefore can be excited for various reasons. Guinea pigs are accustomed to living and playing in small groups. Likewise, when eating, guinea pigs’ sense of smell plays a very important role in distinguishing between healthy and unhealthy food. The same applies to identifying different individuals.

Vision

Due to the position of their eyes, guinea pigs are able to look both forward and to the sides without turning their heads. Thus, they have a relatively wide field of vision, which is especially important for protection from their natural enemies in the wild. Guinea pigs can at least distinguish between the colors red, yellow, green and blue. This also plays a role when eating.

Touch

Tactile hairs around the mouth and nose help guinea pigs determine in the dark whether it is possible to penetrate this hole or whether there is an obstacle in the way. Gustatory perception When guinea pigs' sense of smell does not allow them to clearly identify or approve certain types of food, they call on their sense of taste to help. In this case, along with instinctively conditioned reactions, previously accumulated experience plays a role, for example, in distinguishing between good and bad food. This means that guinea pigs prefer sweet food to salty food. However, they do not refuse bitter things either. And among guinea pigs there are individual taste preferences, which are manifested in the fact that individual individuals often prefer completely different foods as treats.

Sound perception

Unlike a number of other rodents, such as hamsters, mice, rats, chinchillas, etc., as well as rabbits, guinea pigs have an extensive repertoire of sounds. It ranges from murmuring as an expression of satisfaction, cooing as a sign of establishing contact between themselves, to clicking teeth as an unambiguous loud acoustic warning of the upcoming struggle for primacy of adult males.

Guinea pigs have a varied and rich sound repertoire. Young guinea pigs emit a thin squeak that calls on the mother or, when kept in a group, other females to take care of the baby. At the same time, mothers respond to these calls for help as their cubs grow up, that is, from about two weeks of age, less and less, and in this way accustom their offspring to independence. Adult guinea pigs also sometimes make sounds that are well understood by humans, expressing fear. When one of the members of the community makes them, the whole group often runs in single file towards the wall or hides under some ledge, since in the wild one can find relatively reliable shelter there, primarily from birds of prey. But situations also arise when guinea pigs fall into a kind of tetanus from fear - a kind of behavioral norm that plays a protective role. If a guinea pig is picked up awkwardly, causing it pain, it also makes a characteristic sharp squeak. Trainability Guinea pigs can learn to respond to the saying of their name and to certain calls and whistles. At the same time, it is important to first patiently accustom one or more guinea pigs to yourself, that is, so that naturally timid animals begin to at least trust you and lose their characteristic timidity. Reckless sudden movements, loud noises, etc. can instantly undo the progress achieved over many days of effort.

Read more: Encyclopedia reference book: All about pigs

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Some more exciting facts about hamsters

  • Syrian hamsters live on their own; they are solitary creatures and need their own space. If they are placed with other hamsters, they will become very aggressive and may even kill them.
  • Hamsters' natural habitat is declining worldwide. As a result, the hamster population is now under threat, with some species on the verge of extinction.
  • Hamsters do not have very good eyesight, they are very short-sighted and rely more on their sense of smell. Hamsters have scent glands, with which they leave marks on stones and other objects, thereby marking their path.
  • Hamsters are color blind, i.e. they are colorblind
  • When they are scared they may bite, but hamsters are generally kind and gentle creatures and love to play with their owners.
  • Hamsters are quite easy to train to do various tricks and respond to their name.
  • Hamsters typically live between two and three years, however, one year of human life is equivalent to approximately 25 years of a hamster's life!
  • A male hamster is sometimes called a hog, and a female is sometimes called a sow.

Interesting facts about golden hamsters

Animals of this breed living in captivity are very friendly and not at all aggressive. This is what distinguishes them from their wild counterparts. But at the same time, they skillfully guard their territory and will not allow strangers to be on it. For them there is no concept of family ties.

These animals prefer to live alone and are capable of killing a weaker hamster. Therefore, owners should keep them alone.

Scientists have proven that Syrian hamsters can eat almost anything. Therefore, in addition to seeds and grains or fruits, they also need to eat animal protein. In the wild, they can eat insects, carrion, or even hunt other small animals. In addition, sometimes females can destroy their offspring, which their owners try to prevent in captivity.

At home, these animals should be given lean and thoroughly cooked poultry or fish. Otherwise, these small and usually calm animals become quite aggressive and can bite.

Parasitic, fungal, dermatological diseases and symptoms

Hamsters, regardless of breed, often suffer from parasitic and fungal diseases. Djungarians are diagnosed with lichen, dermatophytosis, and trichomoniasis. The main manifestations of mycoses are severe itching, restlessness, deterioration of the coat, the appearance of rashes on the body, scratching, wounds, and long-term non-healing ulcers. With dermatophytosis, the skin acquires a yellowish tint and is very flaky. If treatment is not started, pathogenic flora penetrates into wounds and scratches, which provokes inflammation in various structures of the dermis.

Important! If a hamster is sick with a parasitic or fungal disease and is kept in the same cage with other rodents, immediately isolate the sick animal and disinfect the pet’s home.

Hamsters are susceptible to dermatitis, dermatoses of various etiologies, as well as allergies. Deterioration in the condition of the coat, partial or complete baldness is provoked by frequent stress, deficiency of vitamins, minerals, external parasites, fungi, and substances of a toxic nature.

Your veterinarian will tell you how to treat mycoses. The pet will be prescribed fungicidal, antibacterial agents, solutions (Miramistin, Chlorhexidine), as well as antiparasitic shampoos.

Do not pick up small dungarian hamsters, otherwise you will feed them yourself

Female Djungarian hamsters usually give birth to 4 to 6 babies. On the fifth day after birth, babies acquire soft fluff; on the 10th day, the fur is already quite thick; by this moment the eyes also open. On the 20th day, the offspring of dwarf hamsters can be separated from their mother. To the pet owner

It is worth knowing that the cubs do not feel the danger of falling from a height: when they reach the edge of a shelf or table, they move further and can be very seriously injured when falling. Therefore, the cage should always be closed.

Newborn babies do not squeak only when they feel proper care from their mother. They begin to make shrill sounds when the mother does not feed or lick them. When going out to get food, the furry mother always covers the “kindergarten” with soft bedding.

Description

The Djungarian hamster is a type of hairy-footed hamster. Under natural conditions, Djungarians live in the dry steppes of Western Siberia and Khakassia. Homemade dzhungariki are very popular among residents of Europe and Russia.

Lifespan

On average, Djungarian hamsters live 12 months in the wild and 2-3 years at home. With proper care, a hamster can live up to 4 years.

Appearance

Giant dzhungarik and the giant's hand

The average body length of the dwarf is 8-10 centimeters, body weight is within 65 grams. The body is covered with gray-beige thick short hair with white splashes. There is a dark stripe on the back, which is a characteristic feature of Djungarian hamsters.

The fur on the paws is lighter than on the body. Thanks to the presence of thick fur on their paws, hamsters got their name - hairy-footed. In summer, hamsters are brighter in color; in winter, they lighten up so as not to be visible to predators in the snow. Domestic hamsters do not change their coat color during the winter.

The ears of the Djungarians are compact, round, the eyes are slightly bulging, reminiscent of beads. The hamster's tail is short: when the animal sits, it is practically invisible.

There are several types of coloring of the Djungarian hamster:

  • light beige with white belly (standard option);
  • gray with a white belly (this color is called “sapphire”);
  • pearl dzungariks are white with gray splashes;
  • red hamsters (tangerine color option).

In nature, hamsters lead a crepuscular and nocturnal lifestyle. Domesticated individuals also become more active in the afternoon and at night. During the day, the animal prefers to spend time in its burrow house.

Night vision

Many people are interested in whether animals such as hamsters see anything in the dark. In fact, their night vision is much better developed for the reason that the animals are highly active in the dark. In the dark, hamsters recognize surrounding objects, that is, see them, much better than in light. Their sense of smell and acute hearing also help them find food at night.

Article on the topic: Hamster - description of the animal for children and adults (features, character, photo)

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