A time-lapse video shows a baby blue straw sitting in a tank of water and rocks.
Not much happens at first, as a counter of days zips from 1 to 24. But by Day 25, layers of the straw begin to peel away. As the counter reaches Day 43, holes line the sides before the straw breaks apart on Day 45. About two weeks later — on Day 58 — the straw is gone.
If this were a conventional plastic straw, it could take 1,000 years to break down, one expert said.