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List of Animals That Have Passed the Mirror Test - Animal Cognition
(www.animalcognition.org)
just science related topics. please contribute
note: clickbait sources/headlines aren't liked generally. I've posted crap sources and later deleted or edit to improve after complaints. whoops, sry
Rule 1) Be kind.
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I don't screen everything, lrn2scroll
That's fair, I'm sure there are several factors not mentioned in the article. I suppose I was thinking too plainly. My mind immediately went to things like trail cameras or drones to capture footage with no human interference. But like you said there's logistical issues to deal with.
All those types of questions should be answered in the research paper. Assuming there is one, and you can access it.
For a lot of articles your local library can sometimes help and barring that reach out to the authors. They can share their own work with whomever they please and are often happy to do so.