Bed bugs are most likely the first human pest, new research shows
- A Virginia Tech team sequenced genomes of two bed bug lineages and published findings on May 28, 2025 in Biology Letters.
- They studied because some bed bugs switched hosts from bats to humans around 60,000 years ago, coinciding with human migration out of caves.
- The bat-associated lineage declined since the Last Glacial Maximum about 20,000 years ago, whereas the human-associated lineage grew alongside urban expansion and population increases.
- Researchers discovered a gene mutation linked to insecticide resistance and noted bed bugs reappeared within five years of DDT use despite assumed eradication.
- This evolving human-bed bug relationship may help predict pest and disease spread during urban growth and guide insecticide resistance research.
38 Articles
38 Articles
These bugs may be the oldest pests humans have had to deal with
Bed bugs are more than just a modern nuisance. New research shows they have been with us since humans first started living in caves around 60,000 years ago. That makes them possibly the earliest household pests in human history. The study, published in Biology Letters, examined the genetic history of two kinds of bed bugs. One lived on bats, and he other followed humans. Both populations shrank during the last Ice Age, but only the human-adapted…
Bed bugs have been bothering humans for 60,000 years
We humans might be the Earth’s apex predator, but it’s bugs that really rule the world. At least 5 million insect species live on our planet and some of them like to take up residence right alongside us. That includes bed bugs (Cimex lectularius). These pesky bugs have been thriving off of our blood for at least 60,000 years ago and may be considered our first “pest.” According to a comparison of two recently sequenced whole genomes of two gene…
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