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Metal detector bees give gold mine green light
An analysis of the nectar and pollen collected by two colonies of 40,000 honey bees has been enough for a gold company to determine that their mine in northern Spain is safe to re-open.
An analysis of the nectar and pollen collected by two colonies of 40,000 honey bees has been enough for a gold company to determine that their mine in northern Spain is safe to re-open.
