Photos of rock stacks adorn our Instagram feeds. There are videos of them being created in elaborate styles. Sometimes they defy gravity with anything from pebbles to boulders in their formations. These eye-catching photos are usually framed against stunning natural backdrops and have a calm and tranquil quality to them.

There’s a darker side to these stacks, though. Two of them actually. So much so, that researchers are warning against making them. Is this another side-affect of the ‘doing it for the gram’ culture?

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