Bonding behavior of sister brown bears with different-aged offspring
This paper documents and describes the behavior of 2 sibling female brown bears (Ursus arctos) and their cubs as they bonded at Brooks River in Katmai National Park, Alaska, USA. Between mid- August and October 2022 the adult female bears and their cubs behaved much like a single family. The same-aged mothers each had a […]
Historical range of brown bears
Brown bears (Ursus arctos) are widely distributed in North America, Europe, and Asia; however, their range has decreased. They are categorized as being a species of Least Concern by the International Union for Conservation of Nature (IUCN) red list, but some fragmented, small populations are close to extirpation. Importantly, the global historical range of brown […]
Ursus: A history of the journal
The International Association for Bear Research and Management has a publishing history dating back to 1968 with proceedings associated with their conferences. To improve the consistency and timeliness of publications, the peer-reviewed journal Ursus was established in the late 1990s and has become an important source for papers on all eight ursid species. This paper […]
Risk of bear-inflicted human injury in Yellowstone National Park

Yellowstone National Park, USA, is a popular tourist destination with sympatric populations of grizzly bears (Ursus arctos) and American black bears (U. americanus). It receives >4 million recreational visits annually, and bear–human interactions are common. Many visitors are concerned about the risks of recreating in bear habitats, and wildlife managers are interested in knowing the […]