Walking like a millipede
ETH Zurich engineers have created a magnetically controllable cilia carpet that can move like a millipede. Watch the following video.
Reference
Gu H, Boehler Q, Cui H, Secchi E, Savorana G, De Marco C, Gervasoni S, Peyron Q, Huang TY, Pane S, Hirt AM, Ahmed D, Nelson BJ: Magnetic cilia carpets with programmable metachronal waves. Nature Communications 2020, 11: 2637, doi: external page 10.1038/s41467-020-16458-4