I read this a very long ago and have forgotten a lot of details, but this is the basic plot: Aliens are exploring a deserted earth (it is about to blow up or something). The humans have somehow manage to evolve much faster than they had anticipated and escaped. At the end they are discussing if a race that evolved so quickly could be a problem. The last line is something like "Well there are billions of us and a hundred of them <laughter>. Ten years later that remark was not so amusing"
I would love to read it again if I could just find the title.
Thanks in advance!
I would love to read it again if I could just find the title.
Thanks in advance!