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Cows painted with zebra-like striping can avoid biting fly attack

135 点作者 ga-vu超过 5 年前

21 条评论

Someone超过 5 年前
<a href="https:&#x2F;&#x2F;journals.plos.org&#x2F;plosone&#x2F;article?id=10.1371&#x2F;journal.pone.0223447" rel="nofollow">https:&#x2F;&#x2F;journals.plos.org&#x2F;plosone&#x2F;article?id=10.1371&#x2F;journal...</a>:<p><i>”The treatments were black-and-white painted stripes, black painted stripes, and no stripes (all-black body surface)”</i><p>Weird that they didn’t have a fourth group with white painted stripes. Now, the group with black-and-white painted stripes is the only one that has white paint applied, so it could as well be that the white paint causes the difference.
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sgt超过 5 年前
I think the sample size is too low. I am willing to bet that once you start doing this, the flies will start adapting and learning - eventually completely ignoring the stripes after a few generations.
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Angostura超过 5 年前
The problem I have with the paper is regarding the nature of the controls.<p>They painted black and while stripes on the cows. But they don&#x27;t say what the controls were that I can see. Unpainted cows? Or cows painted a single colour.<p>I&#x27;d want to see all white and all black painted animals - perhaps the makeup of the paint put off the flies?
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scotty79超过 5 年前
I think the article doesn&#x27;t mention that but this is inspired by previous research on zebras, done to explain why zebras have evolved this kind of pattern.
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protomyth超过 5 年前
Somehow driving through South Dakota looking out over a vast field of seaweed eating, zebra striped cows was not the future I anticipated as a youth.<p>I&#x27;d like some more research given that cows come in black &#x2F; white patterns, pure white, and pure black. Is stripes really a thing and how about the other patterns? Do we start breading for color now?
k_sze超过 5 年前
6 cows doesn’t seem like a significant enough sample.<p>Anecdotally, I tend to attract mosquitoes a lot more than some other members of my family. I would imagine the same phenomenon is true among cows.
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fiedzia超过 5 年前
I can&#x27;t wait for &quot;april fools&quot; announcement after thousands of farmers will paint their cows.
Gpetrium超过 5 年前
It would be interesting to see whether certain flies evolutionary traits may develop if we start painting cows. It is entirely possible that Zebra stripes serves as a &#x27;radar jammer&#x27; to flies and that it could help decrease fly bites, further studies may be of interest in this area.<p>If evolutionary traits are likely to occurs, it is worth noting that the size of cow (1,400,000,000) [1] and zebra (800,000)[2] population may have an impact on how fast these traits evolve to cope with the new normal.<p>[1] <a href="https:&#x2F;&#x2F;www.economist.com&#x2F;blogs&#x2F;dailychart&#x2F;2011&#x2F;07&#x2F;global-livestock-counts" rel="nofollow">https:&#x2F;&#x2F;www.economist.com&#x2F;blogs&#x2F;dailychart&#x2F;2011&#x2F;07&#x2F;global-li...</a> [2] <a href="https:&#x2F;&#x2F;www.worldatlas.com&#x2F;articles&#x2F;where-do-zebras-live.html" rel="nofollow">https:&#x2F;&#x2F;www.worldatlas.com&#x2F;articles&#x2F;where-do-zebras-live.htm...</a>
spiderfarmer超过 5 年前
This knowledge has already resulted in products like this horse blanket: <a href="https:&#x2F;&#x2F;www.boeren.nu&#x2F;b_picture&#x2F;6926&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.boeren.nu&#x2F;b_picture&#x2F;6926&#x2F;</a>
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patall超过 5 年前
It would be awesome if you could do this is a cowshed. Add a stripe projecting light source in the resting area so cows can ruminate with less disturbance.
lonelappde超过 5 年前
It seems a different group did the same research last year: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=19212086" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=19212086</a><p>And if I recall this was also in the news several years ago.
orblivion超过 5 年前
This sounds like an episode of Looney Tunes.<p>I wonder how long before the flies evolve to bother zebras?
ChuckMcM超过 5 年前
Clearly the disruptive startup idea here is yoga pants for cows. Well, yoga body suits. &#x2F;s<p>I love the result. Given the farm automation for feeding, perhaps an automatic paint job could be added to that system as well.
Ensorceled超过 5 年前
So covering the cows half in white paint, halved the number of bites?<p>Seems like a large number of flaws in this study:<p>1. This wasn&#x27;t 100% so maybe flies avoided the painted cows and just went to bite the non painted cows in the study. Would this work if the whole herd was painted? I know from personal experience that the best mosquito repellant is to bring a &quot;city slicker&quot; as bait but you need DEET if one isn&#x27;t available.<p>2. Maybe it&#x27;s the paint and if you cover the entire cow the flies stay away entirely?<p>3. How long did this experiment run? Once they horseflies get hungry or ending their season, they get more aggressive (they are getting aggressive right now in Ontario)
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svennek超过 5 年前
Cowmouhflage?
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arkitaip超过 5 年前
I wonder if a poncho would with the same pattern would have the same effect...? brb registering ponchos4cows.com
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OJFord超过 5 年前
Or, less bizarrely, presumably it also works if painted like a Friesian?
softwaredoug超过 5 年前
Could this be applied to cut down on the drugs we need to give cattle?
buryat超过 5 年前
Will it work for humans?
axegon超过 5 年前
Camouflage for cows?
pvaldes超过 5 年前
Nature always in the middle of our way. Is so annoying that we can&#x27;t turn Africa in a huge cow field... (roll eyes).<p>On the other way, milk fortified with Antimony white, or even better the sweet white lead paint, would do surprising things to children health...