How Big Were Cockroaches 55 Million Years Ago?
Cockroaches are cold-blooded insects that live in moist, humid environments. A team of scientists from Ohio State University recently discovered the largest fossil of a cockroach that lived 55 million years ago. These insects, known as roachoids, had long ovipositors and were the ancestors of mantises and other insects.
During the Carboniferous Era, cockroaches became the dominant life form on earth. Their wings were made of soft material and enabled them to fly. This ability allowed them to grow large. In fact, the largest cockroach fossil ever unearthed was more than three inches long.
Cockroaches are among the oldest creatures on the planet. Their ancestors appeared during the Carboniferous period, and they are thought to be highly resistant to radiation. In fact, most cockroach populations can survive a moderate dose of radiation, while about 20% can survive high-level radiation. Meganeuropsis permiana, the largest prehistoric bug, lived in the late Permian era.
Cockroaches come in hundreds of different colors and species. The earliest known member of the Blaberidae, “Gyna” obesa, was discovered in France about 50 million years ago. Although this species no longer exists, the fossils of cockroaches were found in Green River, which is approximately 40 million years old.
The American cockroach can reach a length of 2 inches and has wings. They are reddish brown in color with a light yellow band on their thorax. Their diet consists primarily of decaying plant and animal matter. They live in moist and warm environments and can easily enter homes through cracks and crevices.