An old custom still hanging on

This week, I conducted research into the history of another well-known holiday tradition: why do we kiss under mistletoe? Mistletoe can easily be spotted this time of year, hanging from the tops of trees, or it might be a ball of green on bare winter tree branches. I did not know until a few years ago that this plant is actually a parasite, which clings to established trees to steal their water and nutrients. Thankfully, it will not likely kill a healthy host tree, but it can weaken the tree. If the tree is fully infested with the plant, it...

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