Hi! I'm curious about ants, do these little critters have lungs? I'm looking forward to an illustration on ants in your blog.
Hi, Ants don’t have lungs - they have a system of tubes called trachea. Gases are generally not transported in the hemolymph so in insects the trachea have to go directly to tissues. See also: http://en.wikipedia.org/wiki/Respiratory_system_of_insects
Here’s a diagram of the tracheal system of an ant from Anatomie du Gaster de la Myrmica rubra by Charles Janet:
Ants are able to close their trachea when they are inactive: