Scyphozoa—the true jellyfish—are cnidarians whose life cycles are dominated by the free‑swimming medusa stage.Most species also have a benthic polyp (scyphistoma) that reproduces asexually by strobilation, releasing ephyrae which grow into medusae.They are key planktonic predators and vectors...
The Australian box jellyfish, whose Latin name is Australian box jellyfish, has caused countless injuries or deaths to humans in the world and is considered the most deadly jellyfish.The Australian box jellyfish can swim at speeds exceeding 4 km/h. In hot weather, they dive into deep water and only...