This Painted Frogfish - Antennarius pictus is seen with its mouth open, sometimes divers described this as yawn. Frogfishes are favourite subject for underwater macro photographers as they can be difficult to find due to their camouflage. They don't moves much, making it very easy to take close-up pictures of them. However, if you have the patience and spend more time with them, they may not like the attention and will open their mouth as captured in this picture as a way to tell you to buzz off! lol
The painted frogfish or spotted frogfish, ''Antennarius pictus'', is a marine fish belonging to the family Antennariidae.