Spider's Scat Disguise May Be Its Salvation
Science Quickly
Scientific American
4.4 • 1.4K Ratings
🗓️ 5 August 2014
⏱️ 1 minutes
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| 0:00.0 | This is scientific Americans 60 second science. I'm Karen Hopkins. This will just take a minute. |
| 0:07.6 | Ever look in the mirror first thing in the morning and say, I look like crap. Well, for some spiders spiders looking like poop can actually be a life |
| 0:14.6 | savor because masquerading as a bird turd appears to protect certain arachnids from |
| 0:19.0 | getting eaten by wasps. That's according to a study in the journal Nature Scientific Reports. |
| 0:24.0 | Researchers were marveling over the plentiful bird dew they were seeing in a forest in Taiwan. |
| 0:28.0 | Then they realized that some of those droppings were in fact speckled spiders sitting atop silky white discs at the center of their |
| 0:34.4 | webs. Sure this scatological costume might fool a bunch of PhDs, but do the |
| 0:39.4 | predatory wasps fall for it? To find out, the researchers used a spectrometer to confirm that the |
| 0:44.8 | spider in its web is spectrally indistinguishable from bird-splat. Then they changed the |
| 0:49.6 | coloring of some webs by dusting them with carbon powder. They found that spiders that rested on the artificially black and silk were much more likely to get eaten. |
| 0:57.5 | Now, these results don't prove that wasps buy the whole poop act. |
| 1:01.5 | Maybe spiders against the white background are just harder to spot. |
| 1:05.4 | To be more confident that looking like poop is key, researchers might test the wasps to find |
| 1:10.3 | out if they're just glad they didn't step in it. |
| 1:12.8 | Thanks for the minute. |
| 1:13.7 | For Scientific Americans 60 Second Science, |
| 1:16.1 | I'm Karen Hopkins. |
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