They don't bite you, emit a foul odor, sneak up behind you, or otherwise ruin your day. Plus, when you see a variety you haven't seen or recognized before, you may be revealing a new species so make sure you have your camera to hand!

Among the fascinating creatures that live under the sea, nudibranchs are the most stunning of all of them due to their incredible colours, their beauty and their exotic forms… They are considered the most beautiful creatures of the sea and as they move very slowly, they are very popular among...