After some thought I decided that the best example I could come up with for reproduction was the tribble
from Star Trek (and yes I know I am a geek). For any fan of Star Trek the image of a hundred little balls of fuzz instantly come to mind at the mention of a tribble, but for those among us who started reading this and thought, "wth is a tribble" I shall explain in a fair amount of detail what they are.

The tribbles first appeared in the classic episode of the original series of Star Trek in "The Trouble with Tribbles." Where a trader starts selling tribbles to the crew of the Enterprise as pets, and soon it is discovered that the tribbles breed at an extraordinary rate. They are 'born pregnant' and give birth as soon as conditions allow, and soon the entire ship is infested. Eventually, the crew just beams all of the tribbles off of the ship to get rid of them.

Therefore, I feel that tribbles are the ultimate example of reproduction at work.