Why Does Cockroach Exist?
WouterThe cockroach is among the oldest living organisms. Its ancestors roamed the Earth more than 300 million years ago, long before dinosaurs and humans ever existed. Because of its adaptability, cockroaches have remained relatively unchanged through the course of evolution. Some scientists think continental drift may have been a key factor in the development of the cockroach.
Roaches have open circulatory systems that allow them to breathe through holes in different parts of their bodies. This allows them to survive for long periods of time without a source of water. They also don’t require a mouth, and can survive in water for up to 30 minutes before succumbing to dehydration. However, roaches can easily spread germs from one place to another.
In addition to being disease carriers, cockroaches also cause allergic reactions. Moreover, their secretions can stain surfaces and change the taste of food. Their odor can be quite strong if there are many of them in a room. Additionally, cockroaches can carry bacteria to food, which can lead to food poisoning, diarrhea, and dysentery.
The cockroach plays an important role in the ecosystem. Since they feed on organic materials, they add vital nutrients to the soil. In addition, they are a main source of food for small reptiles and birds. Their demise would be detrimental to many other living organisms.
