An curved arrow pointing right. Neil Harbisson is the world's first government-recognized human cyborg. An antenna implanted into his head allows him to "hear" colors. And hear more from Harbisson ...

But now, a group of engineers at Harvard has created a cyborg fish made from human heart cells. The fish is modeled after a zebrafish and can move its side to side as it swims around. The idea is ...

An curved arrow pointing right. Neil Harbisson is the world's first government-recognized human cyborg. An antenna implanted into his head allows him to "hear" colors. Produced by Kevin Reilly ...