[hmexx]

That's actually surprising. I would have guessed around 0.25-0.50g or so. I'm usually pretty good at guesstimations, and yet I'm off by a factor of 100 here.

[asteli]

One cm^3 of water is 1g. Ant's a lot smaller.

[kijin]

Alternatively, 1mm^3 of water is 1mg. Imagine the average ant as the sum of three balls, each measuring 1mm^3. That's 3mg.

[tempguy9999]

Some ants are get pretty sizeable.