These bears live higher up than almost any other bear in the world. In summer, they roam meadows at over 4,000 metres - higher than the top of the Alps. When winter comes and the mountain passes fill with snow, they crawl into a cave or a big den, curl up, and sleep right through until spring. This is called 'hibernation'.
A grown-up Himalayan brown bear can weigh up to 250 kilograms - heavier than three big dogs put together. But despite their size, they eat mostly plants. Grass, roots, berries, nuts and the occasional bit of meat make up the menu. They love a particular high-altitude plant whose roots taste a bit like sweet potatoes.
Mother bears have one or two cubs every couple of years. The babies are born tiny - smaller than a kitten - and grow up fast on their mother's rich milk. By the time they leave the den in spring, they are big enough to climb, roll and play-fight on the mountain slopes.
Himalayan brown bears are very rare in Pakistan - only around 150 to 200 are left in the wild, mostly in the Deosai National Park, sometimes called 'the land of giants'. The park sits at 4,000 metres, with wildflowers in summer and snow most of the year. It is a paradise for bears - and one of the most beautiful places in the country.