A couple of neon green Psammocora have just been discovered to be living unattached, as free living coral colonies known as ‘rolloliths’. Psammocora is just the latest stony coral genus to be documented living as a rollolith, a growth form in…
Coral rolloliths can occur in really unexpected species
We tend to think of most corals as being stationary, one-sided colonies of creatures but in some habitats, an abundance of corals occur as living tumbleweeds. When colonial corals occur as unattached rolling living rocks they are called ‘rolloliths’ – while…
Endless Goni – a tumbleweed Goniopora breaks the rules of attachment
A coral by and large is a colony of polyp animals that is attached to the reef – it sits there, grows onto the reef, sometimes it breaks off but it’s supposed to re-attach or at least stabilize itself. Not…
