The cursor will start disabled. Press A to enable it. For best results, put your mouse in the center and click every 3 seconds. The number will show you an estimate for how many cats there are. It might show infinity for a while, this is natural. Click: Mark cats S: Show stats A: Toggle cursor
This is a demonstration of how to estimate the amount of organisms in a population. Basically: -Catch some -Give them all some distinctive mark -Let them mix with the population -Catch some more, marking the newly caught ones -Repeat Finally, you put the stats from the trials into a formula, which gives you an estimate.