Most sharks do not like human meat. They have strong preferences for food and will mostly go after seals or fish. Bigger sharks like white sharks enjoy prey with high fat-bone ratio like that of seals. Only the tiger shark is considered dangerous for humans because they do not have meal preferences and will eat anything. Crocodiles are opportunistic, aggressive and giant beasts that do not mind eating whatever that comes along their way. When a crocodile wants to kill, it will grab its prey and just roll down under the water with it. Crocodiles are completely unpredictable unlike sharks.