The robotic claw is inspired by glass eel larvae that are nearly invisible, but tough enough to swim long distances. It’s made out of a hydrogel — a polymer gel that’s more than 90 percent water by ...

Catching a fish can be tough even if you are just trying to net a goldfish in a small tank. That's because the fish spots the danger and makes a swim for it. But what about if you didn't need a net ...

Harry Potter's invisibility cloak is real. Well, for some fish at least. A study released Thursday says that two ocean fish -- the big-eyed scad and the lookdown -- have fine-tuned a method of ...