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#spiders

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New research from the Hebets Lab at University of Nebraska Lincoln: _Agelenopsis_ grass spiders in noisy urban environments weave webs with built-in noise dampening—as opposed to their rural cousins, who built more sensitive webs when researchers turned up the volume.

From the NYT article linked below:

> “While animal sensory systems can, and do, certainly adapt over evolutionary time to changing environmental conditions, this takes time,” Dr. Hebets said. “Behavioral changes, however, can be immediate.”

This offers an intriguing tangent: webs are part of a spider's sensory apparatus but are constantly re-built, and behavioural plasticity lets them "evolve" much faster—an evolution you can't track by looking at physical traits alone.

Anecdotally, _Agelenopsis_ are masters at adapting their flat sheet webs to even the unlikeliest urban environments! So it's not a surprise they are adaptable in other ways as well.

Paper: doi.org/10.1016/j.cub.2025.02. :ClosedAccess:

NYT article: nytimes.com/2025/03/22/science // archive.ph/Mu7KJ

doi.orgWeb transmission properties vary with a spider’s past and current noise exposureAnimals rely on the reception of accurate information for survival and reproduction. Environmental noise, especially from human activity, challenges i…

In #Pathfinder1e #Ustalav tonight, the level 3 party knew they were going to the ratfolk warren to fight invasive giant black widow #spiders. They used four scrolls of delay poison and took anti-venom along for everyone.

The giant black widows were squeezing (-4 attack, -4 AC) in the narrow warren tunnels and didn't even score a hit on the party as they were mopped up.

Oh well, the ratfolk community will still pay them on the agreed terms.


In Ghana 🇬🇭 when posters can't be imported, local artists will bootleg them to the best of their abilities. Some often are more imaginative than the official studio releases.

(2013)
After a Soviet space station crashes into a New York City subway tunnel, a species of venomous spiders is discovered, and soon they mutate to gigantic proportions and wreak havoc on the city.

The other day when I finally got around to cleaning the computer out, and literally the cobwebs, I wondered to myself wtf spider is the one that always makes webs inside the case and is never seen. I think I might have found the subject. I just saw it crawling along but after taking the photos I noticed there was a random array of the fine webs on another loop of cable above this that look like what was inside.

Little-humped spiders have reached Oxford! #iNaturalist user flamingtofunz posted a photo yesterday.

This Australian spider was found in NZ in 2016 in #Christchurch and has spread southeast (Little River by 2022), south (Leeston by 2024), north (Pegasus by 2024), and now northwest to Oxford.

It's a small, distinctive social spider. A few 100 spiders work together to build large messy webs that catch a lot of insects.

inaturalist.nz/observations/26