How long do coral reef sharks live?
25 years
What eats the reef shark?
Predators of the grey reef shark include larger sharks such as the silvertip shark (Carcharhinus albimarginatus), tiger sharks (Galeocerdo cuvier) and the great hammerhead shark (Sphyrna mokarran) (Frisch et al.
Can box jellyfish kill a shark?
In fact, the 43 known species of box jellyfish cause more death and serious injuries than sharks, sea snakes, and stingrays combined.
Do sharks get stung by jellyfish?
The only place a shark would have to worry about being stung by a jellyfish is their eyes – but most sharks have a tough membrane that they can close over their eyes that would protect them from the stings.
Is it safe to swim with jellyfish?
Although they’ve got a bad reputation, it’s perfectly safe to swim with jellyfish at a few places in the world. Kakaban Island in Indonesia’s Derawan Archipelago holds one of these marine lakes, populated by thousands of stingless jellies. Visitors don snorkel gear and slide into an ethereal scene.
What happens if you step on a dead jellyfish?
Jellyfish can sting if they brush against you when you’re swimming in the ocean. You also can get stung if you step on a jellyfish, even a dead one. Usually, jellyfish stings will hurt, but are not emergencies. Most cause pain, red marks, itching, numbness, or tingling.
Can you touch a dead jellyfish?
The tentacles of the jellyfish have tiny stingers called nematocysts which can detach, stick to skin, and release venom. Even if the jellyfish is dead, it can still sting you because the cell structure of nematocysts is maintained long after death.
Do you pee on a jellyfish wound?
A: No. Despite what you may have heard, the idea of peeing on a jellyfish sting to ease the pain is just a myth. Not only are there no studies to support this idea, but pee may even worsen the sting. Jellyfish tentacles have stinging cells called nematocysts that contain venom.
Can you eat jellyfish raw?
You can eat jellyfish in many ways, including shredded or sliced thinly and tossed with sugar, soy sauce, oil, and vinegar for a salad. It can also be cut into noodles, boiled, and served mixed with vegetables or meat. Prepared jellyfish has a delicate flavor and surprisingly crunchy texture.
Do jellyfish get tangled?
7. Jellyfish never get tangled. Even though some jellyfish have very long tentacles, they never get tangled up or sting them. That’s because the tentacles are very slippery and only sting other species of jellyfish.