We just struggled to figure out how to put fitted sheets on a split-top bed, so I’m too tired to do it. Here are a few videos to do the job.

This first one is looking at spiders from an evolutionary perspective — it’s at a basic level, since the first thing it has to explain is that spiders aren’t insects.

This second one is more about spider cognition. It has a similar problem, since what it says isn’t really new. I took a grad-level physiology course from Michael Land in 1980 that focused almost entirely on jumping spiders, and we talked about similar things.

That course was the highlight of my first year of grad school. I guess it’s not surprising that I returned to spiders here in my dotage.