Quick update: here’s a shiny new Parasteatoda postembryo. Nothing exciting happens in this video — it’s nothing but 3 minutes staring into the eyes of a baby spider. It twitches a bit. It waves a leg around, floppily. But so much is happening in its nervous system!
This is one member of the new clutch of Gwyneth’s grandchildren. I’ll be sorting them out this weekend and putting them in individual vials, and maybe by early March they’ll be making Gwyneth’s great-grandchildren.