When conditions get too dry, Madagascar hissing cockroaches like to "cuddle". Under certain conditions, the large insects gather in groups, with many participants in physical contact with one another.

Many people believe that cockroaches are simple creatures that act instinctively rather than consciously. The picture is less set in stone, according to recent laboratory studies from Scotland.

Fair warning: If creepy-crawly things turn your stomach, don't read this at the breakfast table. Especially, if you are eating Froot Loops. Guess what else follows its nose and always knows the fruity ...