Research library
🧬 The Felid Wiki — 3,000 research summaries
AI-curated summaries for the pride’s library — verify citations independently before citing.
110 summaries in Physiology & Anatomy on felids
Bite club: comparative bite force in big biting mammals
PaperThis influential comparative study estimated bite forces across a broad range of living and extinct mammalian carnivores using dry-skull dissection methods and lever modelling, then scaled the results…
Wroe, S.; McHenry, C.; Thomason, J. · Proceedings of the Royal Society B · 2005
Bite forces and evolutionary adaptations to feeding ecology in carnivores
PaperThis study measured or estimated bite forces across many carnivoran species and related them to body size, skull shape, and feeding ecology, building predictive relationships between morphology and pe…
Christiansen, P.; Wroe, S. · Ecology · 2007
Research overview: acoustic structure and proposed frequencies of the cat purr
OverviewThe purr has a characteristic low fundamental frequency, and this overview reviews its acoustic structure and the claims made about specific frequencies. Measured purrs typically centre on low frequen…
Research overview: arboreal locomotion and climbing biomechanics in cats
OverviewMany cats climb readily, and some are highly arboreal. This overview surveys the biomechanics of climbing: the use of sharp recurved claws for grip, limb and joint mobility for negotiating branches, b…
Research overview: arginine essentiality and the urea cycle in cats
OverviewCats are exquisitely sensitive to a lack of dietary arginine, and this overview reviews why. Arginine is essential to the urea cycle that disposes of nitrogen waste from protein breakdown, and because…
Research overview: balance, the tail, and dynamic stability in narrow-substrate movement
OverviewCats are renowned for poise on fences, branches, and ledges, and this overview reviews how they maintain dynamic balance on narrow or unstable substrates. The tail acts as a counterbalance and inertia…
Research overview: basal metabolic rate and energy expenditure in cats
OverviewHow much energy a cat needs at rest and in daily life is fundamental to its biology, and this overview reviews feline basal metabolic rate and energy expenditure. Like other mammals, cat metabolic rat…
Research overview: behavioural thermoregulation through posture and microhabitat choice
OverviewMuch of feline temperature regulation is behavioural, and this overview reviews how posture and microhabitat choice keep cats comfortable. Cats curl up tightly to conserve heat and reduce exposed surf…
Research overview: behavioural water conservation through nocturnality and shelter use
OverviewBehaviour is a frontline defence against water loss in the desert, and this overview reviews how desert cats use timing and shelter to stay hydrated. By being active in the cooler night and resting in…
Research overview: binocular vision, depth perception, and the pounce
OverviewForward-facing eyes give cats substantial binocular overlap, and this overview reviews how this supports the depth perception needed to judge a leap or pounce. Overlapping fields allow stereopsis, in…
Research overview: brown adipose tissue and non-shivering heat production
OverviewMammals can generate heat without shivering, and this overview reviews the role of brown adipose tissue in feline heat production. Brown fat produces heat directly through specialised metabolism rathe…
Research overview: camouflage, coat patterning, and the development of spots and stripes
OverviewCat coats are often patterned for concealment, and this overview reviews the function and development of spots, stripes, and rosettes. Patterns such as the tiger stripes and leopard rosettes break up…
Research overview: canine teeth, the killing bite, and prey dispatch in cats
OverviewFelids kill primarily with their canine teeth, and this overview reviews how canine form and the killing bite are matched to prey. Many cats deliver a precise nape or throat bite, the slender, sharp c…
Research overview: carnassial teeth and the slicing dentition of obligate carnivores
OverviewCats possess sharp, blade-like carnassial teeth that shear flesh like scissors, and this overview surveys their structure and function. The carnassial pair, formed by an upper premolar and a lower mol…
Research overview: claw curvature and its relationship to climbing and prey capture
OverviewThe degree of curvature in a claw correlates with how an animal uses it, and this overview reviews that relationship in cats. Strongly recurved claws favour gripping bark and branches and hooking into…
Research overview: claw keratin structure, growth, and sheath shedding
OverviewA claw is a keratin sheath grown over the terminal bone of the toe, and this overview surveys its structure, continuous growth, and the way cats shed worn outer layers. Scratching strips off the old h…
Research overview: claw sharpening, scratching, and territorial marking behaviour
OverviewScratching serves several functions at once, and this overview untangles them. Dragging the claws strips worn sheaths to maintain sharpness, stretches the limbs and back, and deposits both visual mark…
Research overview: claws as weapons in prey capture and intraspecific conflict
OverviewBeyond climbing, claws are weapons, and this overview surveys their use in seizing prey and in fights among cats. Extended claws anchor struggling prey while the bite is delivered, and raking strikes…
Research overview: coat colour, thermal load, and the physiology of dark versus light fur
OverviewCoat colour can affect heat balance, and this overview reviews how dark and light fur interact with thermal load in cats. Darker coats absorb more solar radiation and may warm faster in sun, while lig…
Research overview: coat structure, guard hairs, and the insulating undercoat
OverviewA cat coat is layered for function, and this overview reviews its structure. Many cats have coarse outer guard hairs that shed water and resist wear over a softer, denser undercoat that traps air for…
Research overview: cochlear tonotopy and high-frequency representation
OverviewInside the cat cochlea, different frequencies stimulate different positions along the basilar membrane, and this overview reviews this tonotopic organisation and its high-frequency emphasis. The cochl…
Research overview: cold tolerance, fur insulation, and winter physiology in cats
OverviewSome cats endure cold climates, and this overview reviews how they tolerate low temperatures. Cold-climate cats rely on dense, insulating fur, including seasonal thickening, on conserving core heat th…
Research overview: comparative water requirements of cats and dogs
OverviewCats and dogs differ in how they handle water, and this overview reviews the comparison and its roots in feline biology. Cats, descended from desert-adapted ancestors, tend to have a lower thirst driv…
Research overview: countermovement, crouch, and energy build-up before a leap
OverviewBefore springing, a cat crouches and gathers itself, and this overview reviews the role of this countermovement in jump performance. The preparatory crouch loads the hindlimb muscles and tendons and a…
Research overview: digestive tract anatomy and the short carnivore gut
OverviewA cat digestive tract reflects its meat diet, and this overview reviews how carnivore gut anatomy suits processing animal tissue. Cats have a relatively short, simple intestine compared with herbivore…
Research overview: digitigrade posture and its locomotor consequences in felids
OverviewCats walk on their toes, a digitigrade posture that lengthens the effective limb and changes the geometry of force transmission. This overview reviews how toe-walking affects stride length, speed pote…
Research overview: do cats see in the ultraviolet range?
OverviewRecent research suggests some mammals, possibly including cats, transmit ultraviolet light to the retina, and this overview reviews the evidence and its uncertainty for felids. Studies of ocular media…
Research overview: drinking behaviour and the lapping mechanics of cats
OverviewHow cats drink became a notable physics question, and this overview reviews the mechanics of feline lapping and its place in water balance. Research showed that cats lap by darting the tongue tip onto…
Research overview: evaporative water loss, panting, and grooming trade-offs
OverviewCooling and water conservation can conflict, and this overview reviews how desert cats navigate evaporative water loss. Cats cool partly by evaporation, through panting and through saliva spread by gr…
Research overview: evolution and phylogeny of vocal anatomy across the cat family
OverviewVocal abilities are distributed across the felid family tree in informative ways, and this overview reviews the evolution of cat vocal anatomy. Mapping hyoid structure and laryngeal features onto feli…