Tiger anatomy is the body plan of the largest cat alive. The tiger (Panthera tigris) is the biggest of the big cats, with adult males of the Siberian subspecies weighing up to 300 kg (660 lbs) and measuring over 3 meters (10 ft) from nose to tail tip.
Every part of a tiger’s body, from the famous striped coat to the long retractable claws and oversized canine teeth, is shaped by a single way of life: ambush, grip, and bring down large prey alone.
The tiger sits inside the genus Panthera with the lion, leopard, jaguar, and snow leopard. Six subspecies survive in the wild today: Bengal (P. t. tigris) on the Indian subcontinent, Siberian or Amur (P. t. altaica) in the Russian Far East, Indochinese (P. t. corbetti), Malayan (P. t. jacksoni), South China (P. t. amoyensis, possibly extinct in the wild), and Sumatran (P. t. sumatrae). Three subspecies have gone extinct in the past century: the Bali, Javan, and Caspian tigers.
The body plan stays consistent across the surviving six (heavy shoulders, short broad skull, long canines, retractable claws, striped coat) and the differences track climate and prey: the Siberian tiger is the largest because it hunts elk and wild boar in deep snow; the Sumatran tiger is the smallest because it hunts wild pigs and muntjac in dense rainforest where a 300 kg cat cannot move.
Tiger Body Size and Build
Tigers are the largest living cats. Adult males of the Bengal subspecies weigh 180 to 260 kg (400 to 570 lbs), and Siberian (Amur) tigers, the largest of the six surviving subspecies, reach 300 kg (660 lbs) or more in exceptional individuals. Females are smaller across every subspecies, around 100 to 170 kg (220 to 370 lbs). At the other end of the size range, the Sumatran tiger weighs only 100 to 140 kg (220 to 310 lbs), an adaptation to an island habitat with smaller prey.
From nose to tail tip, a large male Bengal tiger measures 2.7 to 3.1 meters (8.9 to 10.2 ft), with the tail accounting for 90 to 110 cm (3 to 3.6 ft) on its own. Shoulder height is 90 to 110 cm (3 to 3.6 ft). The body is long, deep-chested, and heavily muscled across the shoulders and hindquarters, with a narrow abdomen that gives the tiger the slim-waisted silhouette of an ambush predator. The cat sprints at 50 to 65 km/h (31 to 40 mph) over short distances and clears horizontal jumps of up to 10 meters (33 ft).
The Unique Stripe Pattern
The tiger’s most recognisable anatomical feature is its dark vertical stripe pattern set against an orange to rust-coloured coat. No two tigers share the same pattern. Stripes vary in count, thickness, branching, and spacing on every individual, and researchers routinely identify wild tigers from camera-trap photographs by matching the pattern on the flanks, shoulder, and forelegs, much as humans are identified by fingerprints. Most adult tigers carry roughly 100 to 130 stripes across the body.
The stripes are not only in the fur. They sit in the skin too: if a tiger is shaved, the pattern remains visible on the skin underneath, because pigment-producing cells are arranged along the same pattern lines. Functionally the stripes work as disruptive camouflage. Vertical bars break up the outline of a stalking tiger as it moves through tall grass, reeds, and light-and-shadow forest, so prey species cannot resolve the tiger as a single solid shape until it is within striking range.
Tiger Skull, Jaws and Teeth
A tiger’s skull is large, broad, and short relative to its length, an arrangement that maximises bite force at the front of the jaws. The zygomatic arches (cheekbones) flare out widely to anchor enormous temporalis and masseter jaw muscles, and the sagittal crest along the top of the skull provides additional muscle attachment in adult males. A large male tiger’s skull can exceed 30 cm (12 inches) in length.
Tigers have 30 teeth: 12 incisors, 4 canines, 10 premolars, and 4 molars. The upper canines are the longest of any living cat, 7 to 9 cm (2.75 to 3.5 inches) in most adults and approaching 10 cm in exceptional individuals. These canines deliver the killing bite, a clamp on the throat or the back of the neck of large prey such as deer, wild boar, gaur, and water buffalo. The carnassial teeth (the last upper premolar and first lower molar) work like scissor blades to shear flesh and crack bone. Bite force at the canine tip is estimated at around 1,000 PSI, less than that of a brown bear but exceptional among felids.
Tiger Paws and Retractable Claws
A tiger has four paws, with five toes on each front paw and four on each hind paw, for a total of 18 claws. Like all cats except the cheetah, tiger claws are fully retractable: at rest they are pulled back into protective sheaths above the toe pads by elastic ligaments, which keeps the points sharp and silent during stalking. To deploy them, the tiger contracts a flexor tendon, rotating the last bone of each toe and unsheathing the claw for gripping prey or climbing.
The claws are curved and laterally compressed, growing up to 10 cm (4 inches) along the outer curve, with the dewclaw on each forepaw acting like a thumb to lock onto struggling prey. The paw pads are large and thick, spreading the cat’s weight in silence across forest floor, snow, or mud. Tiger tracks are round, with the front paws producing wider impressions than the rear, and unlike dog tracks they show no claw marks because the claws are retracted during normal walking.
Fur and Coloration
Tiger fur is double-layered, with long coloured guard hairs over a softer insulating undercoat. Coat colour varies by subspecies, ranging from the deep rust-orange of Bengal and Indochinese tigers, through the paler, more golden tones of Siberian tigers, to the darker, more closely-striped Sumatran coat. The underside of the body, the inside of the legs, the chin, and a patch around the muzzle are white or cream in every subspecies.
Two unusual colour variants appear in the wild and in captivity. The white tiger is not an albino but the result of a recessive gene that suppresses orange pigment, leaving white fur with dark stripes and pale blue eyes. The far rarer golden or “strawberry” tiger carries a different recessive mutation that produces pale gold fur with faint reddish stripes. Both forms are linked to Bengal stock in the records. Siberian tigers grow a thicker, longer winter coat, with mane-like fur around the throat in adult males, an adaptation to temperatures that fall below minus 30 degrees Celsius (minus 22 F) across their range in the Russian Far East.
Senses: Sight, Hearing, and Smell
A tiger’s eyesight is its dominant hunting sense and is roughly six times sharper than a human’s at night. Behind the retina sits the tapetum lucidum, a reflective layer that bounces incoming light back through the photoreceptors, doubling the effective light gathered in low-light conditions and producing the characteristic green eyeshine when a beam catches a tiger after dark. The eyes are positioned forward on the skull, giving a wide field of binocular vision and excellent depth perception during the final pounce.
Tiger hearing extends up to roughly 60 kHz, well above the human ceiling of 20 kHz, allowing the cat to detect the high-frequency squeaks of small mammals and the rustles of larger prey through dense vegetation. The external ears are rounded, mobile, and can rotate independently to localise a sound source. Smell is the least developed of the three senses but is still acute, and is used mainly for social communication: tigers rely on scent marks (urine sprays mixed with anal-gland secretions) to define territories, signal reproductive status, and avoid unwanted encounters with neighbouring tigers.
Internal Anatomy and Hunting Adaptations
The internal anatomy of a tiger is built around a single specialisation: the ambush kill of prey that can outweigh the tiger itself. The shoulder and forelimb muscles are heavy, with the latissimus dorsi and pectorals giving the cat the power to drag a 250 kg gaur or buffalo carcass several hundred meters. The hind limbs are longer than the front limbs, providing the spring for pounces of up to 10 meters horizontally and 5 meters (16 ft) vertically.
The hyoid apparatus at the base of the tongue is partly cartilaginous in tigers and the other big cats of the genus Panthera, which is what allows them to roar (a domestic cat with a fully ossified hyoid cannot). A tiger’s roar carries across roughly 3 km (around 2 miles) of forest. Tigers are strong swimmers, with slightly webbed toes and a long flexible spine, and unlike most cats they seek out water and cool off in rivers and lakes during the heat of the day. The tail, around a meter long, acts as a counterbalance during sharp turns at speed and is used for visual signalling between tigers at close quarters.
Tiger vs Lion: Anatomy Comparison
Tigers and lions are the two largest living cats, both members of the genus Panthera, but their bodies are built for very different ways of life. Lions are open-country social hunters; tigers are solitary ambush predators of dense forest, swamp, and snow. The anatomical differences reflect that split.
| Feature | Tiger | Lion |
|---|---|---|
| Largest male weight | Up to 300 kg (660 lbs), Siberian subspecies | Up to 250 kg (550 lbs), African subspecies |
| Body length (head + body) | 1.7 to 2.1 m (5.6 to 6.9 ft) | 1.7 to 2.5 m (5.6 to 8.2 ft) |
| Coat pattern | Dark vertical stripes on orange (skin and fur) | Plain tawny coat in adults |
| Mane | None (Siberian males show throat ruff only) | Adult males grow a full neck and shoulder mane |
| Upper canine length | 7 to 9 cm (2.75 to 3.5 in), longest of any cat | 6 to 7 cm (2.4 to 2.75 in) |
| Build | Heavier shoulders, longer body, deeper chest | Lighter build, taller at the shoulder for size |
| Habitat | Forest, mangrove, taiga, grassland | Savannah, scrub, semi-arid grassland |
| Social structure | Solitary outside breeding | Pride-living social cat |
| Swimming | Strong swimmer, seeks water | Avoids water in most populations |
For more on the species, see our profile of the Bengal Tiger and the White Bengal Tiger, plus close relatives the Lion, Jaguar, Leopard, and the hybrid Liger. For comparable big-predator anatomy, see Lion Anatomy and Wolf Anatomy, or browse the full Animal Anatomy hub.