🧬 The Felid Wiki — 3,000 research summaries

Eyes cannot maximize both light sensitivity and spatial detail at once, and the cat is a textbook example of how a nocturnal predator resolves that conflict. This survey examines the structural choice…

Early kittenhood includes a sensitive socialization period during which sensory and social experiences strongly shape later behavior. This overview surveys the sensory socialization window, a phase in…

Quantum efficiency describes the fraction of incoming photons that produce a useful visual signal, and the tapetum raises that fraction by recycling light. This overview surveys how the tapetum, toget…

The tapetum lucidum is a reflective layer behind the cat retina that bounces light back through the photoreceptors, giving the eye a second chance to capture each photon and producing the familiar glo…

Among terrestrial mammals, cats have one of the highest upper hearing limits, extending well into the ultrasonic range. This overview surveys audiogram data placing the feline ceiling far above the ro…

Balance and spatial orientation in cats depend on the vestibular system of the inner ear, including the semicircular canals that sense rotation. This overview surveys the structure and function of the…

To keep vision stable as the head moves, the vestibulo-ocular reflex rotates the eyes opposite to head motion, and this reflex has been studied extensively in cats. This overview surveys the feline ve…

Alongside the area centralis, the cat retina has a horizontally elongated band of higher ganglion cell density known as the visual streak. This overview surveys the role of the visual streak, which pr…

Each feline whisker sits in a follicle-sinus complex, a specialized structure packed with mechanoreceptors and blood-filled sinuses that transduce whisker movement into nerve signals. This overview su…

Cats are often noted for an exceptionally large ratio between their fully constricted and fully dilated pupil areas, a consequence of the slit geometry. This overview surveys measurements and discussi…

Newborn kittens cannot regulate their body temperature well and depend on sensing warmth to stay close to their mother and littermates. This overview surveys neonatal thermotaxis, the tendency of youn…

The cat auditory cortex has been a foundational model for understanding how the brain represents sound. This overview surveys its tonotopic organization, in which neurons are arranged according to the…

Whisker signals travel to the brain through the trigeminal nerve, and the cat has served as a model for studying this tactile pathway. This overview surveys how densely the whisker follicles are inner…

Microscopy has revealed how the feline tapetum is built from highly ordered cells packed with reflective material, arranged in layers behind the retina between the photoreceptors and the choroid. This…

While cats cannot taste sweetness, they are highly responsive to the savory, umami-like tastes associated with amino acids and nucleotides found in meat. This overview surveys feline umami taste, medi…

Beyond catnip and silver vine, valerian root and Tatarian honeysuckle wood also elicit pleasurable responses in many cats. This overview surveys these alternative botanicals, which can stimulate cats…

Not all cat eyes glow the same color, and the variation carries clues about the tapetum and pigmentation. This overview surveys reports that eyeshine color can differ with age, coat and eye pigmentati…

Balance can decline with age as the vestibular system and associated pathways change, affecting the steadiness of older cats. This overview surveys vestibular aging in senior cats, which may contribut…

When the vestibular system malfunctions, cats can show dramatic signs of imbalance, and studying these disorders illuminates how the balance sense normally works. This overview surveys feline vestibul…

Vomeronasal sensory neurons express specialized receptor families, often termed V1R and V2R types, that detect pheromones and related chemical cues. This overview surveys what is known about these rec…

Because whiskers are so sensitive, repeated or unavoidable contact can be uncomfortable, a concern raised in discussions of so-called whisker fatigue or stress, particularly around deep food bowls. Th…

Even with excellent night vision, cats encounter conditions too dark or too close for their eyes, and here whiskers take over as the primary spatial sense. This overview surveys how cats use vibrissae…

When a cat captures prey, it must deliver a precise killing bite, often to the nape, and whiskers help guide that final action at a range where vision fails. This overview surveys evidence and observa…

A long-standing idea holds that a cat's whiskers roughly span the width of its body, helping it judge whether it can fit through a gap. This overview surveys the concept of whisker-based gap detection…

Although domestic cats have vertical-slit pupils, large felids such as lions and tigers have round pupils, a contrast that has attracted scientific attention. This overview surveys the explanation tie…

Human red-green color vision depends on having two long-wavelength cone types with closely spaced sensitivities, a feature most mammals lack. This survey reviews evidence that cats, as dichromats, can…

This study tested how domestic cats respond to four plant materials known to elicit olfactory-driven reactions: silver vine, Tatarian honeysuckle, valerian root, and catnip. By presenting these materi…

Sebastiaan Bol, Jana Caspers, Lauren Buckingham, et al. · BMC Veterinary Research · 2017

This foundational neuroscience study used kittens to reveal how early visual experience shapes the developing brain. By depriving one eye of normal vision during a critical period of early life and th…

Torsten N. Wiesel, David H. Hubel · Journal of Neurophysiology · 1963

This landmark study investigated why cats rub and roll on silver vine and catnip, and uncovered a surprising functional benefit beyond apparent pleasure. The researchers identified nepetalactol as a p…

Reiko Uenoyama, Tamako Miyazaki, Jane L. Hurst, Robert J. Beynon, et al. · Science Advances · 2021

This widely cited study tested why pupil shape varies so systematically across animals, finding a strong link between vertical-slit pupils and a terrestrial, ambush-predator lifestyle, exemplified by…

Martin S. Banks, William W. Sprague, Jurgen Schmoll, Jared A. Q. Parnell, Gordon D. Love · Science Advances · 2015