How a squishy clam conquers a rock
It turns out that this mollusk’s boring organ is anything but
![a giant clam](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/06/061918_SM_clams_feat.jpg?fit=860%2C460&ssl=1)
JUST THE FRILLS Showy blue and green frills are the only visible parts of a kind of giant clam that traps itself for life inside the rocky mass of a reef by a process that’s been misunderstood for decades.
Nhobgood/Wikimedia Commons (CC BY-SA 3.0)