Do Cockroaches Eat Spiders: The True Facts About These Pests

Do Cockroaches Eat Spiders

Both cockroaches and spiders have been around for millions of years. They are considered very resilient and can live through some of the worst conditions.

Both coincidentally are also two of the most hated pests in the world. Both species propagate quickly, leaving their unsightly marks wherever they go.

But what do cockroaches eat? Do they eat spiders? If you’re afraid of these insects because you’ve heard they feed on other creepy crawlers like spiders, it may comfort you to know that this is only a tiny part of their diet.

If you’re interested in learning more about these incredibly hardy pests, keep reading!

Do Cockroaches Eat Spiders?

Cockroaches do not eat live spiders as they are not predators. However, they are scavengers that eat anything from plants to dead animals and eat any dead spiders they find.

They are also omnivores, meaning they eat both meat and vegetables. Surprisingly, roaches will also eat other roaches if food is scarce in the area. 

Cockroach Facts

A cockroach is a wingless insect closely related to the ant and bee. There are around 4,500 different species of cockroaches, and only 30 of them are associated with human households and are considered pests. 

Cockroaches are considered one of the most hated pests, and the mere sight inspires disgust and hatred in some people. But is there more to cockroaches than just their repulsive appearance?

The fact is that these tiny insects exhibit all kinds of interesting behaviors and traits. For example, did you know that cockroaches can survive for seven days without ahead? Or that they are highly resilient and can live for weeks without food? 

Or even more interesting, did you know that cockroaches have been living on this planet for about 300 million years, long before dinosaurs walked the Earth? Roaches have survived every mass extinction event that occurred in that time. 

It’s no wonder the cockroach has earned the nickname “survivor .”They have been around for a long time and will probably be here for a long time to come. 

Other interesting facts:

  • Cockroaches can survive submersion in liquid nitrogen for short periods.
  • Cockroaches can hold their breath for 40 minutes at a time before they die.
  • One cockroach species can live up to seven days without its head.
  • They can go for a month without food.
  • Roaches eat other roaches when they are hungry enough

The typical American household can expect to see an average of four or five roaches in a given year, but some homes have as many as fifty cockroaches scurrying about. If you’ve ever seen a cockroach in your home, you know how terrifying it can be. 

The most common cockroach species are the German and American cockroaches. They can be found in homes worldwide and pose a health risk to humans and pets alike.

German cockroaches are slightly smaller than American cockroaches and are tan in color with two black stripes along their thoraxes. 

They prefer eating human and pet food to other household items, which is why you’ll often find them living near kitchen cabinets.

German cockroaches prefer to live close to water sources, such as faucets or pipes. They can also live under sinks due to the moist environment.

American cockroaches are considered a pest species and may live in sewers and basements where you can sometimes see them foraging for food. 

They enter homes primarily through the sewer or plumbing repairs or by taking shelter in boxes and bags. 

The Roach’s Habitat

Cockroaches have been around for a very long time, and they can be found in many different habitats all over the world. 

Cockroaches can live almost anywhere there is food and water. They live everywhere except Antarctica and a few islands in the South Pacific. 

They prefer to stay away from light and can be found in dark, damp spaces such as sewers and drains.

What Do Cockroaches Eat?

Cockroaches can eat just about anything. They will even eat each other if they are hungry enough. 

They’re called cockroaches because they eat almost anything that they come across, including dead and decaying matter.

Cockroaches are omnivores, and their diets depend on the species. Some eat decaying matter; others are scavengers and will eat almost anything, including dead animals and live plants. 

Cockroaches feed at night, so don’t be surprised if you find one in your kitchen late at night. Cockroaches are very good at finding food sources, especially in places with lots of trash or debris.

Spider Facts

The spider is a member of the arachnid family, including mites and ticks. Spiders are the most significant order of arachnids, with over 45,000 species, including spiders of all shapes and sizes found nearly everywhere globally. 

Despite this remarkable diversity of appearance, all adult spiders are pretty similar.

They have two body parts (tagmata), the cephalothorax and abdomen, have eight legs,  have book lungs to breathe, produce silk, have mandibles for biting,  have no antennae or wings, and no external mouthparts.

Spiders have existed for over 400 million years. Spiders are found on every continent except for Antarctica.

There are more than twice as many spiders as any other type of animal on the planet. There’s a good chance that wherever you live, you have been in contact with a spider before.

Spiders are one of the most feared insects in the world. Even a tiny spider can give people the creeps. Spiders can cause some people to have a full-blown phobia of them.

Not all spiders bite or cause harm. Most are entirely harmless to humans. On the other hand, some species of spiders are hazardous and can even be fatal.

There are nine poisonous species which include;

  • The black widow
  • The brown widow
  • The red widow
  • The Brazilian wandering spider
  • The yellow sac spider
  • The wolf spider
  • The redback
  • The funnel-web
  • The brown recluse

The Spider’s Habitat

Spiders live in the dark, hidden places of the world. They spin webs that act as a mosquito net of sorts and help trap their prey. Spiders also have fantastic eyesight, but they see everything upside down.

Spiders are found in almost every part of the world, from deserts to forests. Most spiders live in burrows underground and on tree trunks. Some build webs to catch bugs and insects for food. 

You will have a hard time escaping them because they are everywhere! Tree trunks, ceiling corners, window sills, and even in your home. 

You’ll often see spiders living with other spiders. The female spider usually lives with a male partner. She will lay her eggs in a sac that she builds and protects. The male spider usually helps to protect the eggs until they hatch.

What Do Spiders Eat?

Spiders are predators in nature and feed on living prey. Spiders are well known for their ability to catch and eat insects. But what does a spider eat? 

Most spiders are insectivores, which means that they consume only insects such as flies, mosquitoes, ants, and even roaches! Insects make up most of their diet, but they also eat other arthropods and even small vertebrates like frogs, lizards, and bats.

A spider can eat anything it can overpower. That’s why they don’t have to be worried about poisonous insects and other creatures unless they get unlucky and are eaten by an insect-like a wasp or a praying mantis. They also eat worms and snails given a chance.

While some spiders are predators, only a few species hunt for prey. The giant jumping spiders and crab spiders are two spiders that hunt other bugs. These types of spiders will stalk their prey before pouncing on it. 

The rest of the arachnids are scavengers that collect food from flowers, trees, and dead animals.

Interesting facts about spiders;

  • Most spiders have venomous fangs that inject a mixture of proteins and other substances under pressure in a successful attack system against their prey.
  • The diet of a spider depends on the species and its environment. 
  • While some spiders are not welcome in our homes, others serve a purpose, eating other bugs and keeping them from entering your home.
  • They come out at night to hunt for their food. 
  • They can live without food for a long time, but when they find some, they feast on it.


Many pests attack homes and cause damage, but few of them can be as destructive as cockroaches. These disgusting pests carry disease, and they feed on almost anything, including the dead bodies of their kind. 

Although you may have heard that cockroaches kill spiders, this is not true; however, there are different ways to control both pests in your home.

If you’re worried about these creepy creatures, don’t be! Just make sure your house is clean and regularly maintained, and you will have nothing to worry about.