Image of the Day: Jelly Bot

See a tiny, jellyfish-like robot swim, burrow, and carry beads.

Chia-Yi Hou
Jul 3, 2019

Atiny, jellyfish-like robot can swim like the real deal, carry beads, and burrow into a pile of beads. The robot has a soft body, is untethered, and measures 3 mm in width at its core. It has five swimming modes for which the time it takes for contraction and recovery movements of the appendages, called lappets, can be adjusted.

Z. Ren et al., “Multi-functional soft-bodied jellyfish-like swimming,” Nat Commun, doi:10.1038/s41467-019-10549-7, 2019.

Jellyfish-like robot swimming upwards while carrying beads

Jellyfish-like robot burrowing into beads and swimming back out

Chia-Yi Hou is an intern at The Scientist. Email her at