There are icicles...and then there are brinicles, the icicle's fast-moving, terrifying cousin. Brinicles aren't just scary, though—they also give scientists an important clue about how live may have evolved.
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Brinicles: Icicles O' Death
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Key Facts In This Video
Brinicles are icicles that grow so fast, they can be observed in real time. 00:00
When ocean water freezes, only the water freezes and the salt and other ions are pushed out. 00:59
Scientists report finding "black pools of death" where brinicles are or used to be. 02:02