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Image credits: ecofarian In addition, if the average body temperature of cats is higher than, for example, that of humans, then at rest it invariably decreases. And since cats love both warmth and ...
Eye patching is used in the orthoptic management [2] of children at risk of lazy eye (), especially strabismic or anisometropic [3] amblyopia. These conditions can cause visual suppression of areas of the dissimilar images [4] by the brain such as to avoid diplopia, resulting in a loss of visual acuity in the suppressed eye and in extreme cases in blindness in an otherwise functional eye.
In this condition, cat retinal ganglion cells and lateral geniculate nucleus cells, having their receptive fields centred in the uniform grey patch, did not respond; on the other hand, primary visual cortex neurons were modulated by luminance changes far outside their receptive fields.
This is notable in horses, cows, cats, dogs, the urban crow [7] and the ball python [8] but is also found in many other species. Due to the lack of melanin production in both the retinal pigmented epithelium (RPE) and iris , those affected by albinism sometimes have pink pupil due to the underlying blood vessels showing through.
Photographing street cats also demands a sharp eye for detail, quick reflexes, and an understanding of their natural behaviors. My experience with red squirrels may have honed me the ability to ...
Perhaps the Cheshire Cat is one of the most famous cats in world culture, but for each of us, the most important kitty is the one that lives with us, rubs against our legs, and brazenly demands ...
Cat senses are adaptations that allow cats to be highly efficient predators. Cats are good at detecting movement in low light, have an acute sense of hearing and smell, and their sense of touch is enhanced by long whiskers that protrude from their heads and bodies. These senses evolved to allow cats to hunt effectively at dawn and dusk.
The basic structure of the hydrophobic retinoid molecule consists of a cyclic end group, a polyene side chain and a polar end group. The conjugated system formed by alternating C=C double bonds in the polyene side chain are responsible for the color of retinoids (typically yellow, orange, or red).