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- Stoned Age: Native American art confirms the use of hallucinogenic drugsUSA TODAY
- Native Californians soared on hallucinogenic plants and painted rock art, study findsCNN
- 400 years ago, visitors to this painted cave took hallucinogensNational Geographic
- Research shows how hallucinogens shaped prehistoric rock artPhys.org
- California cave holds first evidence of humans taking hallucinogens, study findsScience Alert
- View full coverage on Google News
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