Useful tips

Sharks

Sharks are the most feared animal in the sea. Globally about 70 persons are attacked each year.These attacks cause the death of between 5 and 15 persons.

Usually, shark attacks cannot be avoided and are considered accidents.

You, as a survivor, should take every precaution to avoid any contact with sharks. There are many shark species, but in general, dangerous sharks have wide mouths and visible teeth, while relatively harmless ones have small mouths on the underside of their heads. However, any shark can inflict painful and often fatal injuries, either through bites or through abrasions from their rough skin. Sharks are cartilaginous fish in the class Elasmobranches. Unlike bony fish, they have 5-7 gill slits on either side of their head. Sharks that have teeth (some are filter feeders) constantly replace teeth - if one falls out, the next one behind it moves in to replace it.

The three species most involved in fatal attacks:

Great white(carcharodon carcharias)
Tiger(galeocerdo cuvier )
Bull (carcharhinus leucas )

Suggested swimming precautions:

Avoid swimming in murky waters.
Don't swim alone -- stay in groups.
Avoid swimming at dawn, dusk, evening, or night.
Brightly -colored bathing suits and shiny jewelry may look like bright, shimmering fishes.
Don't swim if you are cut and bleeding.
If you see a shark, leave the water immediately and calmly. Panicking and thrashing around might look like a struggling fish.
If lifeguards or beach officials order swimmers out of the water or close the beaches, comply with their instructions!

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