Ants locked in mortal combat for 99 million years
Ants frozen in amber reflect long-lasting conflicts
That evidence was found in a collection of 99-million-year-old amber - fossilized tree resin - from Myanmar. Among the many pieces studied was one that includes two ants of different species locked in battle, while another holds eleven worker ants all of the same species.
Although both species generally resemble modern ants, neither exists today. More significant, however, is the fact that the ants trapped in the amber exhibit the same social behaviour known in the hundreds of ant species today.