# What Happens If You Trap a Spider and Forget About It?

**Channel:** Zyka
**Source:** https://www.youtube.com/watch?v=qai4v8a3aZY
**Transcript page:** https://www.withtranscript.ai/video/qai4v8a3aZY

## Chapters

- 0:00 — The Spider Under the Glass
- 0:17 — How Spiders Survive Without Food
- 1:30 — Why Thirst Becomes the Real Danger
- 2:15 — Escape Limits and Spider Differences
- 3:02 — Recovery, Survival, and Final Advice

## Transcript

**[0:00]:** You spot a spider on the floor. So, you trap it under a glass and tell yourself you'll deal with it later. But then, you completely forget all about it. One day passes, then a week, then a whole month. So, what's happening to that spider under the glass? Is it slowly starving, running out of air, or just waiting for you to come back?

**[0:17]:** Let's start with food. Spiders are famous for surviving long periods without food. In 1974, a scientist named John Anderson tested this in the lab. He stopped feeding two kinds of spiders, a wolf spider that hunts on the ground, and spider that builds webs. Then, he waited to see how long they'd last. On average, the adult wolf spiders lasted 208 days. That's almost 7 months. But web builders lasted even longer, about 276 days. That's around 9 months without a single meal. So, how do they pull this off? First, spiders already run on very little energy. Their metabolism is far slower than other cold-blooded animals their size. Think of a car that burns almost no fuel. Second, when food runs out, they slow down even more. Starving spiders cut their energy use by 30 to 40%. And surprisingly, they still seem to work normally. It's like switching a phone into power saving mode.

**[1:08]:** Scientists in Japan watched this happen in another wolf spider. For the first 2 days without food, its breathing sped up. Then, from day 3, it dropped sharply. After that, it stayed low and steady. Its body weight slowly shrank over time. But the moment food came back, its breathing and weight quickly recovered. So, hunger isn't what threatens the spider under your glass. At least, not for a long time.

**[1:30]:** The real problem is water. House spiders already live in a very dry world. The Burke Museum describes them as thirsty creatures. That's why they often end up in sinks and bathtubs. They climb down looking for a few drops of water. Under a dry glass, there's no water at all. Spider expert Jonathan Coddington made a similar point about vacuums. Spiders that survived being vacuumed usually die later from thirst. So, under that glass, the countdown isn't hunger, it's thirst. There's no exact deadline for every spider, but even a champion faster still needs to drink. Now, what about air? Many people worry the spider will suffocate, but a glass sitting on the floor isn't sealed. Air can usually slip in through tiny gaps underneath, and spiders use very little oxygen to begin with. So, air is rarely the first problem.

**[2:15]:** What about escaping? The spider can't lift the glass. Some spiders can walk right up the smooth glass walls. Jumping spiders and huntsman have hairy pads on their feet, but even a great climber just reaches the top and runs into a glass ceiling. Many other house spiders can't climb smooth surfaces at all. So, most will spend their time on the floor waiting. And there's a good chance you trapped a male. The Burke Museum says big spiders wandering indoors are usually adult males searching for a mate. That matters because in at least one spider species, males handled starvation much worse than females. In a lab study of a social spider, no male survived past 23 days without prey. Females and young spiders lasted up to 53 days. The researchers suspected males invest in finding mates rather than in surviving long. Of course, that was one species, not every spider.

**[3:02]:** So, what happens if you finally remember the glass? If it's still alive, it may have lost some weight, but starving spiders have one more superpower. When food finally shows up, they can eat a huge meal. Anderson found starved spiders can double their body weight by eating. And digesting a big meal can boost a spider's metabolism more than 20 times. In other words, they're built for long waits and big feasts. So, what really happens if you trap a spider and forget it? It won't starve in a few days. It slows down and saves energy. Food can wait for months. Water can't. So, the longer you forget, the more thirst decides its fate. If you want to help it, slide a card under the glass and move it to a quiet, sheltered spot. Because that tiny prisoner can wait a very long time. Just not forever.