So it's quantity that's bothering you?
I'll tell you what ... take a sandbox full of ants and place it at the bottom of an olympic-size swimming pool and fill the swimming pool up with water.
Now siphon the water out of the swimming pool
* and look for ants in the sandbox.
Percentage-wise, how many ants would you expect to find
in the sandbox?
(Please answer this.)
* Notice I said
siphon [upward] -- not
drain [downward].
I will when I get to do the experiment. Don't have a swimming pool or a sandbox with ants.