When you first get in at the PPG Aquarium in Pittsburgh Zoo, you will be entertained with the collection of sea horses. It amazes me how their features naturally blends in with the rocks and sea weeds.
Take a look at this one. If you are not attentive enough, you would think that it is just one of the sea weeds.
I remember when I was a kid, my father would take home a sea horse if he finds one in the ocean and put it in a jar for us to see. Then we would let it go afterwards. Some people there collect and dried them for decoration.