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Cat species vary greatly in body and skull sizes, and weights: The largest cat species is the tiger (Panthera tigris), with a head-to-body length of up to 390 cm (150 in), a weight range of at least 65 to 325 kg (143 to 717 lb), and a skull length ranging from 316 to 413 mm (12.4 to 16.3 in).
This is a list of extant species in the Felidae family, which aims to evaluate their size, ordered by maximum reported weight and size of wild individuals on record. The list does not contain cat hybrids , such as the liger or tigon .
Left to right, top to bottom: tiger (Panthera tigris), Canada lynx (Lynx canadensis), serval (Leptailurus serval), cougar (Puma concolor), fishing cat (Prionailurus viverrinus), Asian golden cat (Catopuma temminckii), ocelot (Leopardus pardalis), and European wildcat (Felis silvestris) Range of Felidae.
Feliformia skull showing double-chambered bullae. All extant feliforms share a common attribute: their auditory bullae (bony capsules enclosing the middle and inner ear). [8] This is a key diagnostic in classifying species as feliform versus caniform. In feliforms, the auditory bullae are double-chambered, composed of two bones joined by a ...
Acinonyx pardinensis was roughly twice the size of today's cheetahs, weighing around 60–121 kg (132–267 lb), [2] [3] though A. pleistocaenicus was much larger. [4] The morphology of the skull shows some similarities with those of pantherine cats and is not as short and deep as that of the modern cheetah.
Cranial evolutionary allometry (CREA) is a scientific theory regarding trends in the shape of mammalian skulls during the course of evolution in accordance with body size (i.e., allometry). Specifically, the theory posits that there is a propensity among closely related mammalian groups for the skulls of the smaller species to be short and ...
The sizes of bobcats' home ranges vary significantly from 0.596–326 km 2 (0.23–126 sq mi). [38] One study in Kansas found resident males to have ranges of roughly 21 km 2 (8 sq mi), and females less than half that area. Transient bobcats were found to have home ranges of 57 km 2 (22 sq mi) and less well-defined home ranges.
Encephalization quotient (EQ), encephalization level (EL), or just encephalization is a relative brain size measure that is defined as the ratio between observed and predicted brain mass for an animal of a given size, based on nonlinear regression on a range of reference species.