Image of the Day: Imitation Fish
Image of the Day: Imitation Fish

Image of the Day: Imitation Fish

Scientists create a soft-bodied robotic fish that pumps synthetic blood and swims on its own.

Jun 20, 2019
Chia-Yi Hou

ABOVE: The soft-bodied robotic fish
JAMES PIKUL

A soft-bodied robotic fish runs on a synthetic circulatory system that pumps a liquid with electrolytes through the body, the developers described in Nature yesterday (June 19). The robot swam against a current and moved its pectoral fins. The circulatory system and electrolyte liquidfuels a battery that allows the robot to operate for up to 36 hours.

C.A. Aubin et al., “Electrolytic vascular systems for energy-dense robots,” Nature, doi:10.1038/s41586-019-1313-1, 2019.

Robotic fish swimming in tank setup
JAMES PIKUL
View of robotic fish swimming from above
JAMES PIKUL