The Steatoda borealis spiderlings have finally emerged from their egg sac! They are slow, plump, and numerous.
I spent a good chunk of the morning plucking them out one by one and putting them in separate vials. Tomorrow, once they’ve laid down some silk, they’ll get many fruit flies and will be able to make their first kill.
How big are they?
About 1mm long
Are the spiderlings cannabalising their siblings as noted in this previous thread on spider babies? :
https://freethoughtblogs.com/pharyngula/2025/08/05/spider-mommies-are-the-best-mommies/
Are their siblings their first kills?