Do animals in the wild ever become addicted to natural mind-altering substances?
Human beings have probably always used (and abused?) drugs, starting with natural plants / fungi. Do other animals do the same, when left to their own devices? Can they get addicted to ‘drugs’ the way we do?
Note: I know that lab animals can become addicted. This question is about their ‘wild’ counterparts, and their own natural behavior.
This question is in the General Section. Responses must be helpful and on-topic.