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| Training crows to pick up cigarette butts for food (crowdedcities.com) | ||
| recommended by 1 user | 2017 | 156 points by jfren | biology | original thread | | ||
| One user recommended this thread. What they said: |
| Eric_WVGG Aug 27, 2018 | on: Cigarette butts are the single greatest source of ocean… | context |
Love this project to train crows to pick cigarette butts. https://news.ycombinator.com/item?id=15486368
I had hoped that the vaping trend would mean fewer cigarette butts, but now I'm seeing plastic Juul capsules littered here and there. So much for ecological millennials…