These snakes have elliptical pupils surrounded by a stunning yellow or gold iris. The eyes are well-camouflaged within the ...

much like how the iris in the human eye acts to dilate and constrict the pupil. We move thanks to coordination among many skeletal muscle fibers, all twitching and pulling in sync. While some muscles ...

Researchers at MIT created synthetic muscle tissue that flexes in multiple directions, advancing the development of biohybrid robots for diverse applications.