Hello, Mr. Whale! 哈囉，鯨魚先生！

★The most vivid and interesting enlightenment picture book about marine animals★ Welcome to the sea world andplay with seals, turtles, and anglerfish!Octopus has three hearts?How many teeth does a shark have? (What! There are actually 300 of them...)The blue whale is as big as an airplane!Dolphins can swim and sleep at the same time?Want to know more about these amazing animals?Let’s enter the mysterious ocean world together!    Hello, Mrs. Jellyfish!Shhh... Not only does the jellyfish not have half a bone, it also doesn't have a heart, brain and eyes!Be careful, being stung by a jellyfish can be very painful and may even kill you!    Hello, Mr. Turtle, Baby Turtle!Turtles are reptiles and need to breathe air, but they can hold their breath in water for hours?What? The sex of a baby turtle depends on the temperature of the nest! Hello, Mrs. Anglerfish!The anglerfish may look small, but look at its sharp teeth!No wonder it is said that it hunts ferociously and can eat fish twi