Six of the world’s eight bear species face significant conservation concerns. The IUCN Red List classifies four species as Vulnerable with declining populations: the sun bear, sloth bear, Asiatic black bear, and Andean bear. The polar bear and giant panda are also listed as Vulnerable, though their population trends differ. Only two species, the American black bear and the brown bear, are considered Least Concern globally.
Bear Species at a Glance
Here’s where each of the eight bear species stands:
- Sun bear: Vulnerable, population decreasing
- Sloth bear: Vulnerable, population decreasing
- Asiatic black bear: Vulnerable, population decreasing
- Andean bear: Vulnerable, population decreasing
- Polar bear: Vulnerable, population trend unknown
- Giant panda: Vulnerable, population increasing
- American black bear: Least Concern, population increasing
- Brown bear: Least Concern, population stable
“Vulnerable” is the IUCN’s term for species facing a high risk of extinction in the wild. It sits one step below Endangered. While no bear species currently holds a global Endangered classification, several are declining fast enough that their status could worsen, and certain subspecies are already in far more dire shape.
The Gobi Bear: Rarest in the World
Fewer than 40 Gobi bears remain in the wild, making them the rarest bears on Earth. A subspecies of the brown bear, they live exclusively in Mongolia’s Gobi Desert, the only bears of any kind that dwell entirely in desert habitat. None exist in captivity anywhere in the world.
The Gobi bear is listed as Critically Endangered in Mongolia’s Redbook of Endangered Species, as well as by the Zoological Society of London and the IUCN Bear Specialist Group. That assessment was based on fewer than 50 adults surviving in a population too isolated for bears from neighboring regions to naturally migrate in and bolster numbers. Because they’re a subspecies of the brown bear (which is globally Least Concern), their extreme vulnerability can be easy to overlook in broader conservation rankings.
Polar Bears and Disappearing Sea Ice
The global polar bear population of roughly 26,000 animals is split across 19 subpopulations in four distinct Arctic ecoregions. Their survival is tied directly to sea ice, which they depend on as a platform for hunting seals. As Arctic ice retreats, polar bears lose access to food during critical parts of the year.
A study published in Biology Letters projected a 30% or greater decline in the global polar bear population over the next three bear generations, a window of roughly 35 to 41 years. The probability of that level of decline was estimated at 71%. The chance of a catastrophic 80% drop was very low (less than 1%), but even moderate declines put serious pressure on subpopulations that are already small and geographically isolated.
Sun Bears and Sloth Bears in Southeast Asia
Sun bears, the smallest bear species, have lost an estimated 30% of their population over the past 30 years. The primary drivers are forest conversion to industrial plantations (particularly palm oil), conflicts with humans as habitat shrinks, and illegal wildlife trade. Sun bears range across Southeast Asia, from Myanmar and Malaysia to Borneo and Sumatra, regions where tropical forest is disappearing at some of the fastest rates on the planet.
Sloth bears face a similar combination of pressures across the Indian subcontinent and Sri Lanka. Habitat fragmentation pushes them into closer contact with people, leading to conflict that often ends badly for the bears. Their population is declining, though precise numbers are harder to pin down because sloth bears are nocturnal and live in dense forest.
Asiatic Black Bears and the Bile Trade
Asiatic black bears range from Iran to Japan, but their numbers are shrinking across most of that territory. Poaching for body parts, particularly the gallbladder, is a persistent threat. Bear bile has been used in traditional medicine for centuries, and commercial bear farms in several Asian countries keep animals in captivity to extract it. While some governments have moved to shut down bile farms, enforcement varies widely by country, and illegal trade continues alongside legal operations.
Habitat loss compounds the problem. As forests across South and East Asia are cleared for agriculture and development, Asiatic black bears lose the territory they need for foraging and denning. The combination of direct killing and shrinking habitat has pushed the species firmly into Vulnerable status with a declining trend.
The Andean Bear: South America’s Only Bear
The Andean bear is the sole bear species in South America, living along the mountain spine of Venezuela, Colombia, Ecuador, Peru, and Bolivia. A rough estimate from the late 1990s put their total population above 20,000, with Peru holding the largest share at around 5,000, followed by Colombia at 3,000 to 6,000 and Bolivia at about 3,000. Ecuador and Venezuela each support smaller populations in the low thousands.
These numbers come with a significant asterisk. The original estimate was generated by applying American black bear population densities to the Andean bear’s geographic range, a method that likely overstates the true count. Andean bears are solitary and live in rugged, remote terrain that makes direct surveys extremely difficult. What is clear is that the population trend is downward, driven by agricultural expansion into cloud forest habitat and retaliatory killing by farmers who lose livestock or crops to bears.
The Giant Panda’s Complicated Recovery
In 2016, the IUCN downgraded the giant panda from Endangered to Vulnerable, a move widely celebrated as a conservation win. China’s last official count, conducted in 2013, tallied 1,864 wild pandas. That number has been cited by conservation organizations and American zoos as evidence that decades of investment in habitat protection and captive breeding have paid off.
The reality is more complicated. That 2013 figure is the most recent official tally available, and many in the conservation community question its accuracy. Wild panda surveys rely on counting dung piles and estimating individual animals from them, a method with significant margin for error. Still, the trend is genuinely upward. Habitat corridors connecting fragmented bamboo forests have helped, and strict protections in Chinese nature reserves have reduced poaching to near zero. The panda remains Vulnerable because its total range is small and almost entirely dependent on continued Chinese government protection.
Brown Bears and Grizzlies: A Split Picture
Brown bears as a species are globally stable and classified as Least Concern. They thrive across large stretches of Russia, Canada, and Alaska, where vast wilderness still supports healthy populations. But that global picture masks serious trouble at the edges of their range.
In the lower 48 U.S. states, the grizzly bear (a subspecies of brown bear) is listed as Threatened under the Endangered Species Act. Grizzlies once roamed from the Great Plains to the Pacific Coast; today they’re confined to a handful of recovery zones in Montana, Wyoming, Idaho, and Washington. The U.S. Fish and Wildlife Service identified six core ecosystems for recovery, including the Greater Yellowstone area and the Northern Continental Divide in Montana. Some of these populations have grown significantly under federal protection, while others, like the North Cascades population in Washington, remain critically small.
American Black Bears: A Recovery Success
The American black bear stands as one of wildlife management’s clearest success stories. By the mid-1900s, black bears had been wiped out across large portions of their historical range in the United States. Today they’ve rebounded in roughly 60% of that range, aided by habitat regrowth, hunting regulations, and research funded through excise taxes on sporting goods.
In Connecticut, for example, the state went from essentially zero bears 30 years ago to a rapidly growing and spreading population. Similar recoveries have played out across the eastern United States as forests have regenerated on former farmland. The species is classified as Least Concern with an increasing population trend, one of only two bear species (along with the brown bear) not considered at risk globally.