Well, they’re not really like zombies. National Geographic writers are just masters at sensationalizing research taken from dry scientific journals. Nevertheless, this neat blurb about wolf spiders re-awakening after being submerged in water for up to 36 hours was fascinating. The researchers were initially trying to determine whether forest-dwelling spiders drowned sooner than spiders native to salt marshes. They did this, confirmed their hypothesis, then left all three “dead” spiders out to dry.
That’s when things began to get weird. Hours later, the spiders began twitching and were soon back on their eight feet.
..And, that’s it! No, really. There’s this:
The spiders’ survival trick depends on a switch to metabolic processes—the processes that provide energy for vital functions in the body—that do not require air, the researchers speculate.
Emphasis is mine. This is an article about some spiders drying out and waking up after being submerged under water, and no one even knows how or why they can do that. Pretty unsatisfying, if you ask me (no one did, of course). Good for the spiders, though. They sure showed those researchers what a bad-ass looks like.