Spiders have no idle animation.

Something Weird I've noticed recently is that spiders have no idle animation. Like, none at all. If they're not actively going somewhere, then they're about as still as a stone.

I imagine this is just a carry over from when the game was young. But it's still pretty odd to have a decade down the line, especially for the single most common mob in the game.

Furthermore, while this also applies to most spider variants, the youngest species of spider, the Sea Strider, does have Idle animations. So it's clearly not a creative decision to keep spider animations as non-existent as a unicorn.

So in conclusion, I think the game would benefit a whole awful lot from spiders getting the idles they're owed by birthright.