Comfortable behavior, Types of comfortable behavior...

Comfortable behavior

Under the complex of comfortable behavior means the actions of the animal, which it produces for its convenience or pleasure. The biological feasibility of these actions is not always understandable and does not always need it. KE Fabry believes that comfortable behavior, which serves body care, can be considered as a kind of manipulation. The object of manipulation in this case is not an extraneous object, but the animal's own body. Comfortable behavior consists of a complex complex of phenomena. It includes all the movements associated with cleaning the surface of the skin: shaking, various forms of grooming (cleaning, carding, licking, etc.), sipping, bathing (in water or in sand, earth), as well as sleeping and resting postures. Almost all these forms of movement have a pronounced species-specific character and features. The instinctive nature of comfortable movements is found in a strict sequence of cleansing or scratching individual parts of the body. Many of these actions have the character of complexes of fixed actions. Suffice it to recall how carefully and with a strictly defined sequence of movements the domestic cat is washed.

Comfortable behavior is widespread, even among arthropods. Each person had to observe how an ordinary fly cleans his head, wings, etc. Dragonflies after a meal thoroughly clean the front legs of the palps, eyes and mask, perirotovymi appendages clean the feet, also clean the head and the back of the trunk. Wings are cleaned by stroking them from above with the back condom of the trunk. Sometimes dragonflies wet their feet in a drop of water and then clean their eyes, head and legs. All kinds of dragonflies can dive into the water and then be cleaned during the flight.

Comfortable behavior takes a significant place in the behavioral repertoire of each species. Thus, MA Deryagina in the bison, bison and their hybrids described over a hundred typical for these types of postures and movements. At the same time, it turned out that two thirds of them fall on the postures of sleep, rest and comfort.

Comfort Behavior Types

Many physiologists believe that the act of sipping after a dream or rest period is a special form of movement; he is well known to all of the observations of everyday life and is characteristic not only of mammals, birds, reptiles and fish, but also some invertebrates. The origin and physiological significance of the act of sipping is not entirely clear. Many researchers attach importance to the altered blood circulation during sleep or more or less prolonged dormancy (Figure 9.7).

In particular, the stickleback periodically spreads its fins, primarily the spinal cord, and simultaneously opens its mouth. This yawning has nothing to do with what we understand by this word, its purpose is to straighten the jaws and stretch.

The movement, which can be referred to as sipping, can be observed during the nuptial period in salamanders: ready-to-mating females sniff the marked places, and their excitation manifests itself in the movement of sipping.

Mouse, waking up, pulls forward one front paw, and the other, opposite to it back - back, bends the back and yawns or straightens, pulling up the front paws on the wall. Such a method of sipping is characteristic of rodents and differs from similar methods, for example, in predators or ungulates.

Fetal sleep and comfort poses

Fig. 9.7. Fetal sleep and comfort postures :

a, b - sleep poses, in - yawning, sipping

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