You've never seen "Them"? The best of the 50s scifi movies? It is about giant ants that show up in New Mexico or somewhere where atomic blasting had been done.
Yes, it's kind of hokey compared to movies these days, but the part that I found fascinating is that the director ONLY had the ants doing what ants really do normally. There was quite a bit of info and facts about ants.
Don't fiddle with your remote control -- it's in black and white.