10 Interesting Facts About Earwigs

Earwigs are fascinating insects that have intrigued people for centuries. Their unique appearance and behaviour have given rise to many myths and misconceptions. However, these insects are more than just a source of curiosity—they play a vital role in our ecosystems. In this article, we’ll explore some interesting facts about earwigs, shedding light on their habits, lifestyle, and the truth behind the myths surrounding them.

1. Earwigs Are Not Dangerous to Humans

One of the most common misconceptions about earwigs is that they crawl into people’s ears and burrow into their brains. This myth is entirely false. Earwigs do not have any interest in invading human ears, and they are not dangerous to humans. Their pincers, although intimidating, are primarily used for defence and capturing prey, not for harming people.

2. Earwigs Have Been Around for Millions of Years

Earwigs are ancient insects with fossils dating back over 200 million years. This means that earwigs were around even before the dinosaurs. Their long history on Earth is a testament to their adaptability and resilience. Despite their age, earwigs have remained relatively unchanged, which speaks to the effectiveness of their design.

3. Earwigs Are Omnivores

Earwigs have a varied diet that includes both plants and insects. They are often found in gardens, where they feed on decaying plant matter, fruits, and even other insects. This diet makes them beneficial to gardeners, as they help control pest populations and decompose organic material. However, they can also become pests themselves if their numbers grow too large.

4. Earwig Mothers Care for Their Young

Unlike many insects, earwig mothers are known for their maternal instincts. After laying eggs, the female earwig will stay with her eggs, protecting them from predators and keeping them clean by removing any mould. Once the eggs hatch, the mother keeps caring for the young nymphs until they are old enough to fend for themselves. This level of maternal care is quite rare among insects and is an interesting fact about earwigs that many people are unaware of.’

5. Earwigs Have Wings but Rarely Fly

Although earwigs have wings, they are not strong fliers. Their wings are intricately folded under short, leathery forewings, and they usually only use them to escape danger. Even when they do fly, they do so awkwardly and for short distances. Most of the time, earwigs prefer to scuttle along the ground, using their speed and agility to evade threats.

6. Earwigs Are Attracted to Moisture

Earwigs thrive in damp environments and are often found in places like under rocks, in mulch, or in basements. They are particularly drawn to moisture, which helps them stay hydrated and maintain their exoskeletons. This preference for damp areas is why earwigs are often found in bathrooms and kitchens, especially during hot, dry weather when they seek out cooler, wetter places.

7. Earwig Pincers Are Used for Defense and Mating

The pincers, or cerci, on the rear of an earwig’s body, are one of its most distinctive features. These pincers are used primarily for defence against predators and rivals. In males, the pincers are often curved and more robust, while females have straighter pincers. During mating, earwigs use their pincers in courtship displays and to help position themselves.

8. Earwigs Are Nocturnal

Earwigs are primarily nocturnal, meaning they are most active at night. They spend the day hiding in dark, moist places and come out at night to feed. This nocturnal lifestyle helps them avoid many predators and allows them to search for food under the cover of darkness.

9. Earwigs Can Produce a Foul-Smelling Liquid

As a defence mechanism, earwigs can secrete a yellowish-brown liquid that has a foul odour. This liquid is produced by glands located in the rear of their bodies and is used to deter predators. While this secretion is harmless to humans, it can be quite effective at keeping larger insects and small animals at bay.

10. Earwigs Are Found All Over the World

Earwigs are a global species found on every continent except Antarctica. They have adapted to a wide range of environments, from tropical rainforests to temperate gardens. Their ability to thrive in different climates and habitats is another reason they have been so successful as a species.