马尼托巴的一只北极熊收养了一只孤儿幼熊,45年来在13个病例中观察到的罕见行为。 A polar bear in Manitoba adopted an orphaned cub, rare behavior observed in 13 cases over 45 years.

马尼托巴省丘吉尔证实了一种罕见的北极熊幼熊收养情况,这是45年来哈德逊湾西部人口中记录的第13例。 A rare polar bear cub adoption has been confirmed in Churchill, Manitoba, marking the 13th recorded instance in the western Hudson Bay population over 45 years. 科学家们观察到一头叫X33991的母熊与两只幼熊一起旅行——其中一只是她的生物后代,另一只不是她自己的未授勋幼熊。 Scientists observed a female bear, known as X33991, traveling with two cubs—one her biological offspring and one uncollared cub not her own. 被收养的幼崽,大约10至11个月大,很可能成为孤儿,现在由于产妇护理,存活的可能性更大。 The adopted cub, about 10–11 months old and likely orphaned, now has a better chance of survival thanks to maternal care. 来自加拿大环境与气候变化及北极熊国际的研究人员认为,这种行为源于母性强烈的本能。 Researchers from Environment and Climate Change Canada and Polar Bears International believe the behavior stems from strong maternal instincts. 目前正在进行基因检测,以确定幼崽的起源。 Genetic testing is underway to determine the cub’s origins. 这一结论基于对少数领领熊的长期监测,有助于深入了解北极熊在气候相关挑战中的社会行为。 The finding, based on long-term monitoring of a small number of collared bears, offers insight into polar bear social behavior amid climate-related challenges.