Image by manual crank via Flickr
From almost any bit of water anywhere in the world.
Copepods are tiny little crustaceans that form a major part of marine plankton. Most of them are about 1 millimetre long, but they are still very keen on not getting eaten. Since water becomes thick and syrupy at their scale, they must leap out of danger's way with a strength 10 to 30 times more powerful than any other animal yet studied.
It's a good thing they are that tiny. Any bigger and the sea would be like a boiling mass of bullets and torpedoes!
More on copepods and copepod strength.