oooook, fessing up, this is not Hong Kong, tho they have been recorded in HK waters....this is of course a lovely whale shark.
yep, its a fish and a shark....in fact it eats krill, and is a filter-feeding carpet shark.
And I am trying a new underwater housing for my camera....
It is the biggest fish in the world. The largest confirmed individual had a length of 18.8 m.
they have unique patterns to ID them.
It is by far the largest living nonmammalian vertebrate.