How would you like to discover this robot swimming with you in a pool? Even though it is totally robotic there is something about the shape and movement that would raise my hairs.

“Powered by a lithium-ion battery, the ACM-R5 is a radio-controlled amphibious robot designed to move like its real world counterpart. It can slither or swim underwater for 30 minutes on a full charge. Inside, you’ll find an intricate sensor system (attitude/torque), small-sized camera, and a 32bit micro controller.”

Here are a few more links of additional information, the pages will have to be translated though.
Link1, Link2, Link3, Link4, Link5