The infamous box jellyfish developed its frighteningly powerful venom to instantly stun or kill prey, like fish and shrimp, so their struggle to escape wouldn’t damage its delicate tentacles.

What most of us would recognise as a jellyfish - the otherworldly, gelatinous aquatic animals renowned for their sting-filled tentacles - is actually just the final stage of these animals' life cycle.

Box jellyfish are being caught in drag nets at north Queensland beach despite their numbers declining in the far north. Surf lifesavers are warning people to stay out of the water at popular Eimeo ...