Starfish is a kind of marine life, which usually has five or more "arms" or "limbs" to help it move and prey. Although starfish have many arms, they don't take the initiative to attack humans. The main toxicity of starfish comes from the stinging cells on its surface, which can inject toxins to help them defend against natural enemies. However, these toxins usually do not pose a danger to humans, but if they are overexposed or stabbed, they may cause redness and pain.
Jellyfish is also a kind of marine life. They usually have a transparent body and an umbrella-shaped shell to protect their internal organs and reproductive system. Jellyfish are usually nontoxic, but some species may have stinging cells or toxic glands, which can release toxins through their tentacles, tentacles or other parts. When contacting jellyfish, you should avoid damaging their bodies or tentacles to prevent the release of toxins.
If starfish or jellyfish are found on Beidaihe Beach, they should be carefully touched and eaten. If you are not sure about their toxicity or how to handle them safely, it is best to consult local experts or institutions.