Do spiders dream? It’s strange to imagine, but there is evidence to suggest that at least some species might. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.
We know that spiders enter a sleep-like state . This deep rest state enables them to keep healthy, and despite being all eight legs and lots of eyes, they share a surprising number of similarities to human sleep.
So, does that include dreaming ? A 2022 study that tracked the movement of jumping spiders' retinal tubes while snoozing revealed activity similar to that seen in rapid eye movement (REM) sleep – the stage of sleep associated with dreaming.
The study looked specifically at European jumping spiders ( Evarcha arcuata ). This species typically rests at night by han