The spiders gather at their next stop in order to design their course of action (to find a way to overcome the obstacle of the transparent nylon; there, they will need some help, which they will eventually get).
<a href="//commons.wikimedia.org/wiki/User:Annatsach" title="User:Annatsach">Annatsach</a>
CC BY 4.0
<span class="int-own-work" lang="en">Own work</span>