On the cognitive side, ideas have been put forward that ethanol can trigger the endorphin and dopamine system, which leads to feelings of relaxation that could have benefits in terms of sociality.
We're moving away from this anthropocentric view that ethanol is just something that humans use. It's much more abundant in the natural world than we previously thought.
The team found that animals were more likely to choose the food option containing higher levels of ethanol, showing no aversion to ethanol levels.
The new study found that the number of documented cases of wild animals consuming fermented fruit and nectar is rare, but this could be due to a lack of research.
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