In a video gathered by the NOAA Okeanos Explorer, a sea star clings to and takes nutrients from a helpless coral—using its stomach.

A sea star sits atop a spindly white stalk of coral. 
But this sea star's not just getting a bit of rest, it's having a bite to eat. 
In video gathered by the NOAA Okeanos Explorer in September, it clings to and takes nutrients from the helpless coral—using its stomach. 
Sea stars eject their stomachs when it's feeding time. 
They then release digestive juices that allow them to consume their prey. 
A favorite bit of prey is the bivalve mollusk, which