| 1 of 106 | GASPING TURKEY SYNDROME - Gasping accompanied by spreading of wings and often unsteady gait, occurring most commonly in heavy turkeys after 10 weeks of age. Turkeys predisposed to gasping appear to have lowered tolerance to excitement and exercise and are prone to sudden death when moved or during handling and semen collection. G07701. |
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| 2 | GATE, TEXAS - See Texas Gate. G07702. |
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| 3 | GATHERING AREA - A location where animals frequently aggregate, usually near water sources, feeders, shelters, or gates. Gathering sites are easily recognizable by damaged vegetation, trampled ground and accumulations of excreta. The term also is used to refer to locations within animal holding facilities designed to collect groups of animals. G07703. |
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| 4 | GELDING - A castrated male horse. G07704. |
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| 5 | GENITAL - Of or pertaining to the organs of reproduction G07804. |
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| 6 | GEOPHAGIA - Eating soil or earthy substances. G07807. |
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| 7 | GESTURE - A movement or expression displayed for the purpose of visual communication. G07815. |
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| 8 | GETAWAY CAGE - A cage for laying hens, designed to provide higher environmental complexity than battery cages. In addition to water and feeder, these cages also have a nesting box, sand-bathing box, and roosts. G07806. |
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| 9 | GILT - A young female swine up to the time of first farrowing. G07817. |
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| 10 | GNAWING, WOOD - See Wood Gnawing. G07902. |
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| 11 | GOBBLING (turkey) - Vocalization of mature male turkeys, produced usually as a series of 3 - 7 sounds, accompanied in most cases by moderate head movements. G07904. |
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| 12 | GOOSE-STEPPING (swine) - Unusually high action of the legs accompanied by slower locomotion; it may he a symptom of deficiency of pantothenic acid. G07908. |
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| 13 | GOSLING - A young goose prior to sexual maturation. G07909. |
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| 14 | GRASPING REFLEX - Reflexive holding onto an object. Reflexive grasping of the body of the mother is very common in neonates. Grasping also occurs in adults during copulation. G07912. |
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| 15 | GRAVID - Referring to a female carrying an embryo or fetus; pregnant. G07913. |
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| 16 | GRAZING - The act of consuming standing vegetation. G07914. |
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| 17 | GREETING SIGNAL - Any auditory, visual, tactile, or other sign, or combination of such signs, displayed by an organism upon becoming aware of the presence of another organism and indicating acknowledgment of its presence and friendly intention toward it. G07917. |
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| 18 | GREGARIOUS - Referring to an individual that characteristically lives in association with conspecifics in a group, herd, or flock. The same term may be applied in a general sense to a species whose individuals are typically gregarious. Antonym: Solitary. G08001. |
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| 19 | GROAN (horse) - A vocalization of approximately 0.5 second duration, having a broad sound frequency range. It is assumed to be indicative of discomfort and frustration. G08002. |
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| 20 | GROAN (sheep) - A low amplitude sound of intermediate duration (0.5 - 1.2 sec) produced with a slightly open mouth. Groans are characteristically emitted by animals that are ill, those apparently suffering from pain, or occasionally by healthy animals adjusting posture when recumbent. G08003. |
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| 21 | GROOMING - An act of integumentary care (e.g., licking, scratching) to remove parasites, smooth ruffled fur, remove dirt, etc. Grooming is subdivided into self-grooming (an animal grooming itself) and allogrooming (an animal grooming another animal). Grooming may also have a social function, appearing as conciliatory behavior (a subordinate animal grooms a dominant animal), reciprocal altruism (animals groom each other), or ritualized behavior performed during courtship or conflict. G08004. |
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| 22 | GROUND-SCRATCHING (poultry) - A sequence of rapid foot movements performed to manipulate the ground surface. It occurs frequently during food gathering and to a lesser degree in frustrating situations. G08007. |
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| 23 | GROUP - A collection of animals. Generally the term is applied to situations in which the animals are of the same species and the composition of the group is relatively stable over time. Also see specific group -HETEROGENEOUS; HOMOGENEOUS. G08008. |
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| 24 | GROUP DISTANCE ZONE - An area surrounding a group of organisms defined by the distance the group seeks to maintain between itself and other groups. The size of this zone depends on circumstances existing at a given time, such as population density, group size, season, availability of feed resources. This term generally is used in the context of nonspecific social interactions. Compare: Individual Distance Zone. G08011. |
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| 2525 | GROUPING - The formation of a group of animals by natural means (e.g., herd formation as a result of social attraction) or by human action, (e.g., allocation of a number of animals to a given pen or grouping of dairy cows according to milking performance). G08102. |
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| 26 | GROUP SIZE DEPENDENCE - A phenomenon in which the expression of a behavior is affected by the number of animals in a group (e.g., time necessary to establish a social hierarchy). Compare: Density Dependence. G08104. |
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| 27 | GRUNT (sheep) - A low amplitude sound of short duration (0.3~0.75 sec) produced with a closed or slightly open mouth. It is emitted during re-establishment of contact between peers and is indicative of greeting. G08109. |
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| 28 | GRUNT (swine) - The most common vocalization of mature swine produced as a sound of low to medium amplitude. Grunting may consist of single grunts, but more commonly occurs as a series of repeated sounds produced with mouth closed or only slightly open. The pitch of grunts is usually between 1 and 4 kHz. According to the duration of individual sounds they can be subdivided into short, medium, or long grunts. Short grunts (0.1 - 0.2 sec) appear to be a sign of mild excitement and often are produced when a pig is frustrated or greeting another individual. Mid-length grunts (0.2 - 0.4 sec) are often produced during interactions with familiar peers and also during the milk ejection phase of a normal nursing cycle of a sow. Long grunts (0.4 - 1.2 sec) are produced in response to tactile stimulation such as occurs during courtship and the nursing cycle (particularly the nosing and slow suckling phases). Also see specific grunt - COURTSHIP; NURSING. G08110. |
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| 29 | GUARDING (cattle) - The maintenance of close proximity by a bull to a cow in proestrus and estrus. G08111. |
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| 30 | GYMKHANA (horse) - Popular horseback games consisting of a combination of barrel racing, polebending, keyhole race, and stake. G08201. |
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| 31 | GYNADOMORPH - An organism that possesses both male and female characteristics. G08202. |
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| 32 | HABIT - A persistent pattern of behavior. H08203. |
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| 33 | HABIT BREAKING - A conditioning process focusing on extinction of habitual forms of behavior. H08205. |
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| 34 | HAIRBALL - A ball of hair in the digestive tract, developed most frequently in bovines as a consequence of excessive integumentary licking. H08208. |
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| 35 | HAIR CHEWING - Chewing or nibbling on the pelage of conspecifics. It occurs in animals of all ages in free stalls or tie stalls, particularly if the animals are fed high concentrate diets. H08210. |
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| 36 | HALF-PASS (horse) - A dressage maneuver in which the horse moves on a 45 degree angle from its median lane. Half-pass is principally a Traverse executed in a semi-lateral direction. H08211. |
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| 37 | HALT (horse) - A dressage position in which the horse stands motionless with apparently equal distribution of weight on all four legs. The neck is raised with the front of the head close to vertical and the ears indicating attention. H08214. |
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| 38 | HALTER - A device made of leather straps or rope that closely fits the shape of an animal's head and commonly is used to tie and handle large farm animals. H08301. |
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| 39 | HALTER-PULLING (horse) - An action in which a tethered horse pulls backward powerfully on its halter. The horse may have it's hindhooves slip, causing it to fall and roll, or if the halter breaks, the horse may tumble backward and risk injury. Halter-pulling may become habitual in some horses and is considered a dangerous vice. H08303. |
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| 40 | HALTER SLIPPING - Intentional escape from a halter restraint. Some animals become skilled at halter slipping. To prevent this behavior, once it becomes a habit, specially designed haIters must be used. H08302. |
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| 41 | HAND BREEDING - Human-controlled and time-limited pairing of sexual partners for the purpose of mating. H08304. |
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| 42 | HAPTOMETER - An instrument for measuring touch sensitivity. H08309. |
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| 43 | HARASSMENT - Persistent, intentional disturbance of an individual by another individual or group. H08310. |
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| 44 | HAREM - A group of sexually mature females dominated by and mating with one male. H08311. |
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| 45 | HATCHING - The process whereby an organism emerges from the egg laid by its dam. H08314. |
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| 46 | HAUTE ECOLE (horse) - Advanced dressage focusing on refined execution of required movements. H08316. |
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| 47 | HEAD DIPPING - A period of rhythmical submergings of the head and part of the neck in water, manifested by some waterfowl during courtship. H08317. |
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| 48 | HEAD JERKING - Voluntarily controlled short, quick, single movements of the head H08401. |
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| 49 | HEAD NYSTAGMUS - Oscillatory head movement that occurs after the body of an animal has been subjected to rotation. H08402. |
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| 50 | HEAD PRESSING - Extended and repeated leaning forward and pushing of the head against a wall, fence post, or other fixed objects. Head pressing commonly is a symptom of brain damage (due to, e.g., encephalomyelitis, hepatic encephalopathy or elevated intracranial pressure). H08403. |
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| 51 | HEAD SCRATCHING - A comfort movement oriented toward the head area. Generally it is a response to skin irritation or a symptom of mild excitement. H08405. |
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| 52 | HEAD SHAKING (poultry) - A rapid series of side-to-side nicking movements of the head H08406. |
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| 53 | HEAD-SHY (horse) - Refers to a horse that resists close approach to its head or having a bridle put on its head. H08407. |
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| 54 | HEAD TOSSING - A vigorous and often repetitive vertical movement of the head. Head tossing often can be observed in horses under saddle or in unfamiliar environments. It is thought to be a sign of mild excitement or improperly fitting equipment H08408. |
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| 55 | HEART RATE - The number of contractions of the heart muscle in a given time, commonly one minute. H08411. |
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| 56 | HEAT - A sensation resulting from simultaneous stimulation of thermal receptors in the skin. Colloquially, the word heat refers to estrus. H08412. |
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| 57 | HEAT, STANDING - See True Estrus H08413. |
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| 58 | HEAT DETECTOR - See Estrus Detector. H08414. |
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| 59 | HEIFER - A female bovine younger than 3 years that has not delivered a calf. H08419. |
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| 60 | HELPLESSNESS, LEARNED - See Learned Helplessness H08421. |
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| 61 | HEN - A sexually mature female turkey or chicken. H08505. |
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| 62 | HERD - A socially coordinated group of ungulates. In an agricultural sense, a herd is a group of horses, cattle, goats, or swine considered as one managerial unit. H08509. |
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| 63 | HERDING - The formation and maintenance of socially coordinated groups by mammals. Compare: Aggregation. H08510. |
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| 64 | HERDING POSTURE - A stance adopted by stallions manifested as a lowered head and neck with ears laid back. It often is performed when the stallion drives females from one place to another. Rams and bucks may perform a similar behavior pattern but in a less elaborated form and less frequently. H08511. |
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| 65 | HERMAPHRODITISM - The presence of male and female sexual organs in the same organism. H08516. |
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| 66 | HETEROSEXUALITY - Sexual attraction to individuals of the opposite sex H08522. |
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| 67 | HIDDEN TESTES - See Cryptorchid. H08603. |
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| 68 | HIDE - To engage in cryptic behavior. H08604. |
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| 69 | HIDROSIS - Extreme sweating. H08605. |
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| 70 | HIERARCHY - See specific hierarchy - COMPLEX; LINEAR; LINEAR-TENDING; SOCIAL. H08606. |
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| 71 | HIERARCHY LOOP - Any nonlinearity in a dominance-subordinance ranking scale. This may occur in groups of three or more animals (e.g., animal one dominates animal two, animal two dominates animal three, but animal three dominates animal one). H08607. |
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| 72 | HIGH-GAITED (horse) - Referring to leg action in which there is high raising of the hooves from the ground and great flexion of the hocks. H08608. |
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| 73 | HIGH-STEPPING (chicken) - A postural display of males characterized by semicircular movement performed with high, slow steps around an opponent. The bird holds its head and tail high, thrusts out its chest and slightly trails its wings. High-stepping is a threat signal. H08610. |
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| 74 | HINNY - Offspring of a stallion and a jenny. H08613. |
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| 75 | HISSING (geese) - A sibilant sound, up to several seconds long, produced as a threat signal by geese. This term also refers to similar activities in other species such as cats and some reptiles. H08614. |
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| 76 | HOARDING - The storage of food or other materials in a cache(s) located within an animal's home range. H08618. |
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| 77 | HOBBLE - Any leather band or rope placed around an animal's leg(s) to restrain it. H08619. |
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| 78 | HOBBLES - See specific hobbles - BREEDING; MILKING. H08620. |
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| 79 | HOCK TWITCH (cattle) - A flexible loop placed above the hock. When tightened with a short stick, the loop compresses the Achilles tendon and prevents kicking. H08701. |
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| 80 | HOGGET - A young sheep from weaning to first shearing. H08703. |
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| 81 | HOME RANGE - A locality where an individual(s) conducts all its principal activities. H08708. |
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| 82 | HOMOLOGOUS BEHAVIOR - Behavior in different species that is similar in form, but not necessarily in function. The behavior is similar as a result of the species' common phylogenetic origin. Compare: Analogous Behavior. H08712. |
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| 83 | HOMOSEXUALITY - Sexual attraction for individuals of the same sex. H08713. |
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| 84 | HONKING (geese) - One of the vocalizations of geese, consisting of rhythmical loud sounds. Honking is typically produced when geese are flying or excited. H08716. |
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| 85 | HOOF RUBBING (horse) - Chafing of the crown of one hindleg by habitual resting of the hoof of the other hindleg on it. This may lead to leg injury, particularly if the horse wears shoes that have sharp edges. H08801. |
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| 86 | HORNING (cattle) - Digging or churning the ground using the horns or forehead. This type of behavior is generally displayed by males and is assumed to be a sign of excitement and a warning signal. H08804. |
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| 87 | HORSE LAUGH - Lip-curling (Flehmen) in horses. (colloquial term) H08805. |
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| 88 | HOT WALKER - A person or mechanical device that leads horses in a circle at a slow walk to cool them after training. H08806. |
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| 89 | HUDDLING - Maintaining close bodily contact with other members of a group. The term huddling is used for situations in which the bodily contact is initiated voluntarily by the individuals involved. H08808. |
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| 90 | HUNGER - An uncomfortable sensation induced by fasting. Hunger generally is associated with increased appetite for food, provided the duration of fasting has not resulted in lethargy. H08812. |
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| 91 | HUNTER (horse) - A horse trained, exhibited, or competing in the maintenance of an even hunter pace and good jumping style. Hunters are judged working natural obstacles such as hedges, stone walls, and board fences that are 1.0 - 1.5 m high. H08814. |
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| 92 | HYBRIDIZATION - Sexual reproduction in which gametes originate from animals of different species. H08817. |
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| 93 | HYSTERIA - A state characterized by extensive use of defense mechanisms and by a variety of symptoms associated with high levels of fear, anxiety, restlessness, and general irritability. H09111. |
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| 94 | IDLING - Being stationary for extended periods of time while apparently not engaged in any other activity, such as rumination or sleep. Idling occurs predominantly in environments where an animal has relatively limited opportunity or stimulation to perform diverse behavioral activities and may be difficult to distinguish from resting, except that it is performed for more time than is actually required for resting. I09206. |
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| 95 | ILLUSION - An object hypothesis that distinctly misrepresents reality. Illusions may involve different sense modes (e.g., optical, motion, temperature, taste, or auditory illusions). Also see specific illusion - OPTICAL; MOTION; VISUAL I09207. |
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| 96 | IMITATIVE BEHAVIOR - Behavior of an organism that mimics that of other organisms. I09209. |
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| 97 | IMMOBILITY - Lack of movement. Also see specific immobility - TONIC. I09210. |
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| 98 | IMMOBILIZE - To render incapable of movement using physical restraint or an immobilizing agent, e.g. etorphine. I09211. |
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| 99 | IMPRINTING - Rapid learning to identify, approach, and follow some object (typically a parent). Imprinting occurs in some animal species during a critical period of development early in life and is strongly genetically predisposed. I09216. |
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| 100 | INAPPETENCE - Failure to manifest the appetitive and consummatory phases of a behavioral cycle. The term generally is used in reference to food. I09304. |
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| 101 | INATTENTION - Lack of attention or a state of unselective attention I09305. |
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| 102 | INBORN - Present in the organism at birth. Synonym: Innate. I09306. |
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| 103 | IN CALF (cattle) - Referring to a pregnant cow (colloquial term) I09308. |
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| 104 | INCIDENTAL LEARNING - Learning that occurs without a detectable learning process or without ascertainable motivation. I09310. |
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| 105 | INCIDENTAL REINFORCEMENT - Reinforcement that occurs unpredictably and rarely and is unplanned. Also called accidental reinforcement or spurious reinforcement. I09311. |
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| 106 | INCITEMENT - A phenomenon in which an organism causes another to instigate an attack on a third organism. For example a female in the proximity of a male may show a threat display toward an approaching conspecific female, which may lead to the male driving the intruder away. Incitement generally is most common in monogamous species. Compare: Interference I09313. |
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