Science

A spider named for Stephen Colbert has a genome about 50% larger than ours

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 28/10/2026, 17:55:25 UTC.

Briefings

Researchers at UC Davis discovered that the trapdoor spider Aptostichus stephencolberti has a genome approximately 50% larger than the human genome. This finding, published in October 2026, suggests the spider's massive size is driven by genetic expansion rather than just fat storage, as it reaches peak size in autumn. The study highlights a unique evolutionary adaptation in this small, quarter-sized arachnid.

Key points

• The trapdoor spider Aptostichus stephencolberti has a genome approximately 50% larger than the human genome.
• This spider reaches its maximum size in autumn, coinciding with its peak hunting season.

Context

Published in October 2026, this research by UC Davis scientists reveals a genetic mechanism behind the spider's large size. The study focuses on a specific trapdoor species, providing insight into evolutionary adaptations in arachnids.

Limitations

The study is limited to one specific species and does not account for environmental factors affecting size. Genome size comparisons are based on available data and may vary across different populations.

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