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Dogs have ear mobility that allows them to rapidly pinpoint the exact location of a sound. Eighteen or more muscles can tilt, rotate, raise, or lower a dog's ear. A dog can identify a sound's location much faster than a human can, as well as hear sounds at four times the distance. [41] Dogs can lose their hearing from age or an ear infection. [42]
For domestic dogs the tie may last up to half an hour or more, though usually less. [7] When male canines are sexually excited, the bulbus glandis may swell up inside the penile sheath, even if the dog has been neutered. [8] The bulbus glandis also occurs in the penises of some pinnipeds, including South American fur seals. [9]
Tissue-resident memory T cells or T RM cells represent a subset of a long-lived memory T cells that occupies epithelial, mucosal and other tissues (skin, mucosa, lung, brain, pancreas, gastrointestinal tract) without recirculating.
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The "search" aspect of the prey drive is used in detection dogs such as bloodhounds and beagles. The "eye-stalk" is for herding dogs. The "chase" is seen in sighthounds such as Greyhounds and lurchers, while the "grab-bite" and "kill-bite" are for the training of terriers. In most dogs, prey drive can occur without extrinsic reinforcement.
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From a facial aspect, maxillary canines are approximately one millimetre narrower than the central incisor. Their mesial aspects resemble the adjacent lateral incisors, while their distal aspects anticipate the first premolars. They are slightly darker and more yellow in color than the other anterior teeth.
Frenetic random activity periods (FRAPs), also colloquially known as zoomies, scrumbling, or midnight crazies, [1] are random bursts of energy occurring in dogs and cats in which they run frenetically, commonly in circles. They usually last a few minutes or less.