Snow Leopard

About the snow leopard

The snow leopard is a big cat in the genus Panthera, built for life on some of the coldest, steepest terrain in the world. Its thick fur runs whitish to grey, patterned with black spots on the head and neck that give way to larger rosettes across the back, flanks, and bushy tail; the underbelly is whitish, and individual guard hairs measure 5 to 12 cm (2.0 to 4.7 in) long. Males run larger than females, and both sexes carry long canine teeth. The snow leopard was long placed in its own genus, Uncia, until phylogenetic studies tied it firmly into Panthera; it forms a sister lineage with the tiger, with the two species estimated to have diverged somewhere between 4.62 and 1.82 million years ago. Genetic testing has found no confirmed difference between the two subspecies once proposed for the snow leopard, so it's treated as a single, monotypic species.

Everything about the snow leopard's build points to cold, rocky mountains. Its small, rounded ears cut down on heat loss, its broad paws spread body weight for walking on snow, and fur on the undersides of the paws improves grip on unstable ground while further insulating the feet. The tail — thick with stored fat and wrapped in dense fur — helps balance the cat on rocky terrain and doubles as a blanket the animal wraps over its face when sleeping. A short muzzle, domed forehead, and enlarged nasal openings let it warm cold, dry mountain air before it reaches the lungs, though the species isn't specially adapted to high-altitude oxygen thinness. Despite a partly ossified hyoid bone, the snow leopard cannot roar: its vocal folds are only about 9 mm (0.35 in) long, too short to generate the resistance a roar requires. Instead it meows, grunts, moans, and makes a chuffing sound called prusten, and it can purr while exhaling.

Stocky and short-legged compared with other Panthera cats, the snow leopard stands about 56 cm (22 in) at the shoulder, with a head-to-body length of 75 to 150 cm (30 to 59 in) and a tail nearly as long, at 80 to 105 cm (31 to 41 in). Males typically weigh 45 to 55 kg (99 to 121 lb) and females 35 to 40 kg (77 to 88 lb), though large males up to 75 kg (165 lb) and small females under 25 kg (55 lb) have been recorded.

Behavior and diet

Snow leopards are solitary and most active from dawn into early morning, and again through the afternoon and early evening, resting near cliffs and ridges that offer both shade and a vantage point. Home ranges vary enormously with terrain and prey density: in Nepal's Shey Phoksundo National Park, five radio-collared adults held largely overlapping ranges of 12 to 39 km2 (4.6 to 15.1 sq mi), with males covering 0.5 to 5.45 km (0.31 to 3.39 mi) a day and females 0.2 to 2.25 km (0.12 to 1.40 mi) in straight-line distance — though the cats' zigzagging paths across steep ground meant they sometimes moved up to 7 km (4.3 mi) in a single night. In Mongolia's Gobi Desert, adult males used ranges of 144 to 270 km2 (56 to 104 sq mi) and females 83 to 165 km2 (32 to 64 sq mi), with less than 20 percent overlap between neighbors. Where prey is sparse, an area of 1,000 km2 (390 sq mi) may support only about five snow leopards. Individuals mark territory and travel routes by scraping the ground before depositing urine or feces, and by spraying urine directly onto rocks.

As an active hunter, the snow leopard's preferred wild prey includes Himalayan blue sheep, Himalayan tahr, argali, markhor, and wild goat, generally in the 36 to 76 kg (79 to 168 lb) range, though it also takes smaller animals such as Himalayan marmots, pikas, and voles when the opportunity arises. It preys on domestic livestock as well. Diet shifts by region: in the Himalayas it leans on blue sheep, Siberian ibex, musk deer, and wild boar, while in the Karakoram, Tian Shan, Altai, and Mongolia's Tost Mountains, ibex, Thorold's deer, Siberian roe deer, and argali make up more of the diet.

Range and habitat

The snow leopard's range stretches from west of Lake Baikal through southern Siberia and the Kunlun, Altai, Sayan, and Tannu-Ola mountains, across the Tian Shan, Tajikistan, Kyrgyzstan, Uzbekistan, and Kazakhstan, to the Hindu Kush in eastern Afghanistan, the Karakoram in northern Pakistan, the Pamir Mountains, the Tibetan Plateau, and the high Himalayas of India, Nepal, and Bhutan. In Mongolia it occupies the Mongolian and Gobi Altai ranges and the Khangai Mountains. The species lives in alpine and subalpine zones at 3,000 to 4,500 m (9,800 to 14,800 ft), though it can occur lower in the northern part of its range. In summer it typically stays above the tree line on alpine meadows and rocky ground up to 6,000 m (19,700 ft); in winter it descends to roughly 1,200 to 2,000 m (3,900 to 6,600 ft). It favors broken, rocky terrain and can push through snow up to 85 cm (33 in) deep, though it prefers trails other animals have already made.

Population estimates vary widely by region and survey method: India's snow leopard population was put at 718 individuals in 2024, Ladakh at 380 to 598, and the Tibetan Plateau at roughly 755 to 1,341 across a 360,000 km2 (140,000 sq mi) survey area for 2015–2021. Camera-trap surveys across Pakistan's Hindu Kush, Pamir-Karakoram, and Himalaya ranges between 2010 and 2019 estimated 100 to 239 snow leopards in that country.

Conservation status

The snow leopard is listed as Vulnerable on the IUCN Red List. The global population is estimated at fewer than 10,000 mature individuals, with a roughly 10 percent decline expected by 2040. Poaching and habitat destruction are the main threats. The species is listed in CITES Appendix I and is legally protected across most of its range countries, and roughly 40 percent of the 170 protected areas within its range are smaller than the home range of a single male snow leopard, underscoring how much space the species needs to thrive.