When you first hear the word “cockroach,” what do you think of? For many, these pests provoke feelings of discomfort or disgust. From their ability to survive in diverse environments to their role as scavengers in ecosystems, cockroaches are more than just household pests; they are intricate organisms with a story to tell. Join us as we dig into cockroach facts and uncover the secrets behind cockroach behavior.

Cockroach upclose

What’s the purpose of cockroaches?

So, what do cockroaches do? Understanding the purpose of cockroaches involves recognizing their contribution to decomposition and nutrient cycling in various habitats. They help to maintain the balance of ecosystems by breaking down organic matter and returning nutrients to the soil.

A prehistoric history

Cockroaches are estimated to be over 100 million years old. These resilient insects have survived major extinction events and adapted to diverse environments worldwide. By looking at cockroach facts, we know they possess several evolutionary adaptations that contribute to their success, including rapid reproduction, flexible diets, and resistance to environmental stressors. Today, there are over 4,500 species of cockroaches worldwide that vary in size, habitat, and color.

Cockroach survival

Cockroaches are renowned for their survival abilities. These highly adaptable creatures thrive in diverse environments, from tropical forests to urban cities, enduring extreme temperatures and environmental changes. Cockroaches can also fly (when necessary), which can help them escape from potential threats or adverse conditions.

Cockroaches reproduce quickly, boosting population numbers, and their nocturnal habits aid in evading predators. Cockroach behavior also typically includes rapid scattering when disturbed or threatened, making it difficult to catch or eliminate them manually. Because they can survive and hide so well, it is best to contact a cockroach professional if you spot these pests in your home.

Common cockroach myths

One extremely popular myth is that cockroaches can withstand a nuclear explosion. The truth is that a cockroach can withstand ten times more radiation than a person can, but it would not survive a nuclear event.

A second common myth we hear about cockroaches is that they can live without their head for an extended period of time. Surprisingly, this myth is an actual cockroach fact! A cockroach body can survive without a head for up to a week. A roach breathes through small holes in its body segments and has an open circulatory system. Since it doesn’t need its head to breathe, it can survive without one for a short time.

Lastly, many wonder if cockroaches can go a month without food. This is also a cockroach fact! Most roaches can go up to a month without food because they are cold-blooded. But what do cockroaches do when they have no access to water? Roaches need access to water within a week. Otherwise, they will die.

Cockroach lifespan

The lifespan of a cockroach can vary depending on factors such as species, environmental conditions, and availability of food and water. In general, most cockroach species have relatively short lifespans. Cockroaches can live anywhere from a few months to a few years. For example, German cockroaches typically have shorter lifespans of a few months to a year, while larger species, like American cockroaches, can live for up to two years or more in favorable conditions. Additionally, cockroach behavior can vary depending on species and environmental factors.

What eats cockroaches?

Cockroaches have several natural predators in their ecosystems, including birds, reptiles, amphibians, small mammals like rodents, and certain insects such as spiders and centipedes. Some parasitic wasps and nematodes specifically target cockroach species as hosts for their larvae.

Lizard eating cockroach

Do humans eat cockroaches? While cockroaches are not a standard part of most diets in Western cultures, they are consumed in other regions of the world, particularly in parts of Asia, Africa, and South America. In some cultures, the purpose of cockroaches extends to serving as a viable source of protein in their diets.

Roaches are gross, but are they dangerous?

Cockroaches are not inherently dangerous to humans, but they can pose health risks to humans in a few ways.

  • Disease transmission: Cockroaches can carry and spread pathogens that cause diseases. They can pick up these pathogens while foraging around unsanitary environments, which they can then transfer to food, surfaces, or utensils. </br>
  • Allergies and asthma: Cockroach allergens can trigger allergic reactions and worsen asthma symptoms for some individuals.</br>
  • Property damage: Cockroaches cause property damage by feeding on and contaminating food supplies, paper products, and fabrics. This cockroach behavior can also lead to unpleasant odors, stains, damage to electrical boxes and appliances, and structural damage in infested areas.</br>
  • Psychological impact: Cockroaches in homes and businesses can cause distress, anxiety, and discomfort for some due to the stigma associated with these pests.</br>

Cockroach on surface next to food

The biggest roaches

A cockroach’s size varies amongst the species, but a few stand out due to how long and wide they can grow. One of the largest winged cockroaches is the Meglabotta longipennis. This world record holder measures just over three and a half inches in length and over an inch and a half in width.

Madagascar hissing cockroaches are similar in size. This roach can grow three inches long and is usually about an inch wide. Luckily, these two cockroaches are likely not the cockroaches you may find in your home.

Roaches in the lab

Cockroaches, despite their pest status, have become the focus of groundbreaking research worldwide. American cockroaches are being studied for their remarkable resilience and adaptability. Scientists are harnessing their abilities to develop innovative technology, medical treatments, and renewable food sources.

Despite their potential benefits, cockroaches remain unsightly and can pose health risks. Terminix can help protect your home from cockroach infestations.