Festo, has been shown here on Neatorama several times in the past and each time their robotics and bizarre creations blew our collective minds...our Neatorama Hivemind to be exact...but that's a story for another time. ;)
In this video you'll get to see creepy blue LED robotic penguins swimming about in a large pool. Also, you'll see it's more lighter cousin who probably is the envy of every penguin in being able to fly/float and much more in terms of various robotic creations. Really fascinating stuff!
More info here - Link
For older Neatorama Festo links:
Festo’s Upside-Down Hot Air Balloon
AquaJelly and AirJelly
Air Ray: The Blimp With Wings
Meet Aqua Ray
Festo Airic’s Robotic Arm
Floating Fish Blimp