The Himalayas always feel like a world unto themselves, ancient, remote, and alive in ways that are hard to describe. Somewhere above the treeline in this region, where the wind dies down and the paths disappear into the rock and snow, some of the forest’s creatures go about the serious work of survival.
Nepal’s mountain ecosystems are some of the most biologically rich and least understood on Earth, and the predators that rule them are particularly mysterious. For centuries, people have believed that nature distributes large predators within an area. One occupies the hill, the other the valley, and the third hunts at dawn, preventing the apex predators from tearing each other apart for the same food.
Even though this may seem like a viable theory, it is not. This theory also proves to be wrong, at least in one extraordinary Himalayan valley. A new study of Nepal’s Lapchi Valley has overturned that notion, and what researchers found instead is something far more delicate.
Snow Leopard (Photo: Canva)
Three hunters, a valley, and a surprising peace: What does a new Himalayan study reveal?
In a remote valley in the central Himalayas of Nepal, three of Asia’s most powerful predators, the snow leopard, the common leopard, and the Himalayan wolf, share the same terrain, move at the same time, and somehow avoid tearing each other apart. A new study published in PLOS One finally explains how this surprising peace is possible. Researchers say the answer is diet.
The study is based on more than six years of camera-trapping and poop analysis in the Lapchi Valley of the Gaurishankar Conservation Area in the central Himalayas of Nepal, where researchers identified each predator’s diet by studying faecal DNA and examining prey hair under a microscope. The cameras were deployed in three survey phases between October 2018 and March 2025. The researchers found that despite living in the same postcode, the three animals eat remarkably different things.
What do the three big predators eat?
Snow leopards primarily eat wild blue sheep, musk deer, Himalayan tahr, and Himalayan serow, with blue sheep alone making up about half of their diet. Common leopards, on the other hand, primarily prefer livestock and animals near human settlements, including dogs, although they also eat barking deer and gorals.
Himalayan wolves sat somewhere in the middle, taking on a mix of wild prey such as blue sheep and musk deer as well as domestic animals such as goats, horses and yaks. The result is a kind of unspoken truce written into food choices rather than divisions over nature. The dietary overlap between snow leopards and wolves was notable, while the diet of common leopards was very different from both.
The results surprised researchers
Lead author Narayan Prasad Koju of Nepal Engineering College, speaking to Mongabay, stated, “The biggest surprise is that space and time do not maintain peace among the top three predators.” “It is an interesting finding that diet alone is doing so much while the animals are essentially sharing the same space at the same time.”
Study also documents slow-growing threat to wildlife balance
Earlier surveys of the Lapchi Valley had recorded only snow leopards. Leopards and wolves have arrived recently.
Common leopards are now expanding into higher-altitude snow leopard habitat, possibly due to climate change, rising tree lines and increasing infrastructure at lower altitudes. Madhu Chhetri, a researcher at the National Trust for Nature Conservation who has studied predator overlap in the Gaurishankar Conservation Area, told Mongabay that half of the current snow leopard habitat in the Himalayas could be replaced by shifting tree lines, thereby steadily shrinking the alpine areas in which these cats primarily live.
blame falls on the wrong species
Koju said that when a leopard kills livestock in the valley, the blame often falls on snow leopards, simply because they are the more familiar culprit in that landscape. Misattribution could have disastrous consequences for a species already under pressure. Nepal is home to an estimated 397 snow leopards, according to a 2025 government survey cited in the study.
Both the snow leopard and the common leopard are classified as vulnerable on the IUCN Red List. Kozu argues that the practical improvements are not complicated, but they are necessary. “When wild hunting declines, all three hunters shift towards livestock, triggering retaliatory killings and destabilising the entire system.”
