Why do sharks eat fish seals walruses whales other sharks?

Sharks are not concerned about species loyalty, they just eat what they can. by: david6023

not only that. a shark needs 2 eat wat it cans like as david said but sum times sharks mistake it as food. then wen 1 shark bites and rips the shark another shark comes in for the kill. (because sharks go crazy wen they smell blood) then another and another. by: richlee2000