The sting is caused by a reaction to a protein-based venom. Jellyfish release venom from microscopic stingers on their ...

Jellyfish have stinging cells (called nematocysts) in their dangling tentacles which fire like mini harpoons, so if you’ve been stung the first thing to do is check that you don’t still have ...

Mucus from jellyfish that sit upside-down on the ... that cassiosomes are hollow cellular masses lined on the outside with stinging nematocyst cells, and are also covered in bristlelike cells ...

Jellyfish cause stinging by leaving nematocysts behind when they are touched. Nematocysts are tiny coiled stingers that, once ...

Some species of nudibranch have turned to a life of crime, robbing prey of their only defences: their stings. Nematocysts are the venomous stinging cell organelles produced by cnidarians such as ...

Nematocyst Discharge This cell is one of thousands on the tentacles of this starlet sea anemone and other cnidarians, including hydra and jellyfish. These cells contain poison darts that sting ...

Despite their name, jellyfish aren’t ... Popular with professional and home aquarists, moon jellies have nematocysts, or stinging cells, but they’re so small they don’t hurt humans.

Jellyfish have radial symmetry, meaning that if you sliced a jellyfish down the middle, the parts would be symmetrical, like the segments of an orange. These cnidarians are famous for their stinging ...

Their sting has little effect on humans beyond slight discomfort and a rash that will last only a few hours. They are considered a "delectable snack by all sorts of turtles, birds and fish." Jellyfish ...

Nikki Cullis is still suffering after taking part in a swimming event off Scilly two weeks ago Sea swimmers who suffered stings by jellyfish off the Isles of Scilly have compared them to "chemical ...

a research professor in marine ecology at Florida Atlantic University's Harbor Branch Oceanographic Institute at Fort Pierce. Moon jellyfish can sting people and clog machinery ...