Australian Box Jellyfish is very dangerous Jellyfish and scary in appearance as well. It is transparent and difficult to see it through naked eye. It is poisonous Jellyfish of the world and faster in motion as well.
The Jelly Blubber (Catostylus mosaicus), also known as the Blue Blubber Jellyfish, is the most commonly encountered jellyfish along the Australian eastern coast and large swarms sometimes appear in estuarine waters.
A lone upside-down jellyfish (Cassiopea sp.) that had been placed in a dedicated tank at Reef HQ (north Queensland) was one day found to have over 200 babies swimming in its tank in an act that looked like "immaculate conception.
10 Stunning and Unique Jellyfish Species From All around the World