The baby fish is not good at hunting, but it is hidden among the rocks at the beach mouth. When it finds the prey passing, it makes a sudden attack. Its teeth are sharp and dense, and it is difficult to escape after the prey enters the mouth. Its teeth cannot be chewed, but it will only open its mouth. The food is swallowed and then digested slowly in the stomach. The baby fish has a strong ability to endure hunger, and it will not starve to death even if it does not eat for two or three years. It can also be overeating, and a full meal can increase the weight by one-fifth.1. When food is lacking, the phenomenon of similar cannibalism can occur, and even hunger with eggs. Baby fishes like fish, crabs, shrimps, frogs, snakes and other animals. What does this text introduce about baby fish? ['Temperament.', 'Life characteristics.', 'Predatory habits.', 'Digestive function.']