Scientists make a lifelike robotic fish using multipurpose 'blood'
 

There's no question that robots have come a long way since their cold, clunky, cumbersome inception. Nowadays they're smart, agile and responsive -- but they're still missing the tactile, multipurpose elements that make living creatures flexible and...

https://www.engadget.com/2019/06/20/...ipurpose-bloo/