Cockroaches are all over the world, so we'll have to get over the heebie-jeebies. It would help if we learned to appreciate some of their qualities. They are a high-protein food source for other critters — and some people like the crunchy bugs. In addition, they are beneficial for their environments, essentially helping with leaf litter. Some scientists are using cockroach biomimetics for robotic design.
Speaking of design, there is no evidence of cockroach evolution: they have remained the same over millions of Darwin years. Fact is, these things some of us love to hate (especially the five home-invasive species) have been designed by our Creator for specific purposes.
Discovering a cockroach infestation is a horrifying experience, and they are difficult to get rid of once established in a residence. Synonymous with filth and unsanitary conditions, some wonder, ‘Why would God create such a disgusting creature?’ Were they really part of God’s original ‘very good’ creation?I don't want to bug you, but I suggest reading the rest of the article. Just click on "The cockroach: nature’s garbage men".
In fact, while they get a bad reputation from their pest cousins, there are thousands of species of cockroaches that do not infest homes, and actually play vital ecological roles. They also display indicators of ingenious design that robotics engineers are learning from.
If people can get over the "Ewww Factor" for a spell, there are some surprising things about those sanitation engineers of the insect world, the cockroach. They're even being studied for applications in robotics!