Anecdotal reports of ultrasound use by flying squirrels have existed for decades, yet there has been little detailed analysis of their vocalizations. Here we demonstrate that two species of flying s
This study was conducted in the Liupanshan National Nature Reserve (35°15′－35°41′ N, 106°09′－106°30′ E), Ningxia Hui Autonomous Region, northwestern China. The reserve covers approximately 67,800 hect
