Gel-based robot hand can grab and release fish
 

Most robot limbs aren't exactly kind to the organic world given all that unforgiving metal, and even rubber-based soft robots aren't very gentle. However, MIT has a better way. It recently built a hydrogel-based soft robot hand that's bio-friendly wh...

https://www.engadget.com/2017/02/01/...ed-robot-hand/