What do you think how much it would take the ants to drink from a bottle cap full of Pepsi? Ask how many ants will participate in the test? Lots! Very much. For example, like so much:
Note that at the start of the experiment, soda is poured into the lid even a little over the top, but due to the surface tension does not come out to a special area for experiments (bench in the country). The outbreak of the party began to gain momentum and after half an hour the ants decently drunk.
And some, especially violent, even decided to take a dip in the drink, and complained that I had not foreseen fountains.