Aerial-aquatic robots capable of crossing the air-water boundary and hitchhiking on surfaces. - Lei Li; Siqi Wang; Yiyuan Zhang; Shanyuan Song; Chuqian Wang; Shaochang Tan; Wei Zhao; Gang Wang 046; Wenguang Sun; Fuqiang Yang; Jiaqi Liu; Bohan Chen; et al. (Sci. Robotics, 2022)