Jellyfish have a sudductive beauty but can be very dangerous and harmful creatures.
Jellyfish aren't neccessarily aggresive creatures but they tend to sting if you bump into them.
They're among earths deadliest creatures, the most venomous one probably being the box jellyfish.
Jellyfish don't have a brain nor a heart. Plus, they are 600 million years old and could be older than dinosaurs. One species of jellyfish could probably be immortal, and they also eat and poop from the same hole.