Cranium
Irregular Bone; part of the axial skeleton (the central core)
Also known as: Skull (specifically the braincase and upper jaw) of a house cat
Classification
Irregular Bone; part of the axial skeleton (the central core)
Dimensions
Small and compact, usually measuring between 3 to 4 inches in length and roughly 2 to 2.5 inches in width. It features a rounded rear dome and a short, blunt snout area.
Key Features
Most recognizable by the massive, circular eye openings that dominate the face. The nose area is noticeably short and flat. Behind the eyes, two wide arches of bone flare outward to provide space for powerful chewing muscles. The upper teeth are few in number but include long, pointed canine teeth and a specialized sharp-edged 'slicing' tooth on each side.
Similar Bones
Often confused with the skulls of small dogs or raccoons. A dog skull will almost always have a much longer nose and more teeth. Raccoon skulls are similarly sized but have a longer braincase and flatter cheek teeth, whereas a cat's skull is nearly as wide as it is long and has teeth strictly built for cutting.
Across Species
The feline skull is built for high-speed hunting. Unlike the long snouts of dogs which rely on sense of smell, cat skulls are shortened to maximize the force of the jaw muscles. The eye sockets are significantly larger relative to the head size compared to most other mammals, reflecting an evolutionary commitment to low-light navigation. In larger wild cats like lions, the same basic structure exists but includes a prominent bony ridge running along the top of the head for more muscle attachment.
Evolutionary History
The skull shape of modern felines has remained remarkably specialized for millions of years. It represents a shift from the more elongated skulls of early carnivorans toward a highly efficient, compact design that positions the teeth directly under the powerful muscles of the temple. This 'short-faced' evolution allows for a more direct bite force and improved stereoscopic vision, which is essential for pouncing predators.
Photography Tips
To help with identification, take a clear shot looking straight down at the top of the head to show the width of the cheekbones. A second shot from the side helps show the length of the snout, and a shot from underneath (the 'roof' of the mouth) shows the arrangement of the teeth. Placing a coin or a ruler next to the find is very helpful for showing size.