Four sisters left their family in July 2025, followed two weeks later by three brothers, Science reports. The African wild dogs traveled thousands of kilometers over the next nine months. Some settled in new territory, completing what Science describes as the longest movement ever recorded for any African mammal; others had their journeys cut short. Science says the findings highlight the endangered species’ vulnerability while suggesting its populations may be more connected than previously thought, with movements potentially linking ecosystems across eastern and southern Africa.