“This is one of the most amazing echinoderm-related natural history moments that I’ve seen in a while!” writes starfish expert Dr Christopher Mah on the EchinoBlog.

Unlike true starfish, which hover around atop hundreds of tube feet, brittle stars (or “snake stars”) can move quite quickly across the seabed – their superior motoring comes down to those long, wriggling arms – but even so, these creatures are largely known as scavengers or filter feeders.

After watching the clip, some online commenters suggested that the stars didn’t actually eat their cephalopod captive, but Mah assures readers that the meal was indeed devoured. In fact, he points out, similar behaviour was caught on camera back in 1996: