Corals move (kind of)

[kelemvor]

BBC News - Footage shows coral stirring water - Video

2 September 2014 Last updated at 01:56 BST
Coral reefs may look static to the naked eye, but scientists have now seen "violent" activity on their surface.
Using powerful microscopes, researchers filmed this footage showing microscopic hairs on the surface of corals "stirring up" the surrounding water.
They say that these swirls of water draw nutrients towards the coral, and may also drive away potentially toxic waste products.
Footage courtesy of Orr Shapiro, Assaf Vardi, Weizmann Institute of Science/ Vicente Fernandez, Roman Stocker, MIT/ PNAS

 

[drbill]

Of course corals move... the polyps at least. When I saw the thread subject I thought you meant the whole reef just up and left!

 

[KeithG]

well some people see coral moving. we once were very puzzled by another diver that wanted to know what the moving coral was. it took a lot of questions to identify that the coral in question was a giant tunicate.