During this year’s summer flood, I got the opportunity to observe an ant colony struggling for survival. As we walked along the river bank, we saw a pale jam-packed with ants trying to escape the rising water. On our next visit, the pale was entirely submerged. Of course the flood washed away all the ants that clung to the pale, but at the bottom I spotted some ants still alive. I can neither say that these ants belong to the same colony nor that this colony preserved its ability to reproduce. At least this observation proves a remarkable survival strategy evolved among insects.