49 头虎鲸（可能是一个新种群）在加利福尼亚州和俄勒冈州海岸观察到捕猎抹香鲸。 49 orcas, potentially a new population, observed hunting sperm whales off California and Oregon coasts.
不列颠哥伦比亚大学的研究人员发现了一个潜在的公海逆戟鲸新种群，它们捕食地球上最大的掠食者，例如抹香鲸。 Researchers from the University of British Columbia have identified a potentially new population of open-ocean orcas that hunt the biggest predators on the planet, such as sperm whales. 据观察，有 49 只逆戟鲸在加利福尼亚州和俄勒冈州海岸捕猎抹香鲸。 A group of 49 orcas has been observed hunting sperm whales off the coast of California and Oregon. 1997 年至 2021 年间，人们在九次遭遇中观察到逆戟鲸，它们可能属于短暂虎鲸的亚群，也可能属于独特的海洋种群。 The orcas, which were observed in nine encounters between 1997 and 2021, could either belong to a subpopulation of transient killer whales or a unique oceanic population.