Reasons why sharks may not be considered kosher:
* Sharks are scavengers and opportunists, meaning they will eat anything they can find, including dead animals and carrion. This can make their flesh impure and unfit for consumption.
* Sharks are predators and hunters, meaning they have sharp teeth and claws that can cause injury to humans. This makes them dangerous and not suitable for human consumption.
* Sharks live in the ocean, which is considered to be a salty and impure environment. This can make their flesh salty and unpalatable, and therefore unfit for human consumption.
Arguments in favor of the kosher status of sharks:
* Some rabbis argue that sharks can be considered kosher if they are caught and prepared in a certain way. For example, they must be caught using a hook and line, and their fins and internal organs must be removed before cooking.
* Some rabbis argue that sharks are pure because they are born from eggs, and they do not have any physical deformities.
* Some rabbis argue that sharks are only considered impure if they are caught in certain ways, such as by using a net, or if they are not prepared properly.
Ultimately, the decision of whether or not to eat shark is a personal one. There are both valid arguments in favor and against the kosher status of sharks, and it is up to each individual Jew to decide what is best for them.