\line{
  \hfil
  \picture{../photos/2019-12-13-2.jpg}{An antlion being pulled out of the 8x7 enclosure}{5in}
  \hfil
  \picture{../photos/2019-12-02-2.jpg}{A number of lines formed by wandering antlions determining density}{5in}
  \hfil
}
