Response to a picture on Facebook of a handle use to move a metal plate of a wood burning stove

Last time I used one was around 1962 in Burnt Woods, Oregon. We were in a cabin built with lumber from a cow barn we tore down. During an evening meal, I stopped suddenly and stared at my plate. Seeing the quizzical look on my face, one of my brothers asked why I was staring at my dinner. I replied that one of my rice moved. One of the most stoic of the diners said, Mark, come on we are eating. I told them, no, look at this rice, as I pointed out the offending grain. One of my brothers came around the table and stared where I pointed. Very quickly the rice moved almost as if it were a Mexican jumping bean. Looking up at the ceiling, I drew attention to the cause. Large ants, carrying white long grain rice size ant eggs, were crossing the wooden planks making up our downstair's ceiling and upstairs floor.