Cods

This is what the Australians call a “potato cod,” though in fact it’s a grouper. It’s one of a large pack that likes to hang around divers.

That’s in one area of the Barrier Reef where divers were once allowed to feed the fish. That was decades ago, and the fish fed by the divers are long dead, but their great-grandchildren still cluster around hoping for a handout. 

Interesting how the memory lingers through the generations in a species otherwise not celebrated for its mental prowess.

From 2011.