Now we can all think about how information like this can be used in our day-to-day experience.
Goldfish live in a deep-fat fryer: "Cory Doctorow:
A Japanese restaurant has combined a deep-fat fryer with a functional goldfish tank -- the boiling oil floats on the surface of the cool water, and the fish get to eat all the crumbs of batter that dribble down.
Because oil floats on water, despite the massive heat (163 degrees Celsius) the goldfish simply stay away from the surface and all is well. They eat the crumbs of croquettes and other fried foods that fall to the bottom, and can live in there for 5-10 years as they happily clean away, ignorant to the fact that certain death awaits any potential escapees.
Link (via Kottke)