BR6: Animal Travelers

I read a book whose title was “Animal Travelers.” There are a lot of animals in all over the world. For example, salmons come back to their birth place for laying eggs even if they were how far from there. I’m interested in it because I think it is very mysterious. Why are they able to come back to their birthplace? Why do they have a mistake when they should come back in there? I think that they may realize by instinct. They don’t have their language, so they can’t take communication each other. However, they can make a move for a great distance with a lot of groups. Animal’s instinct is very wonderful because they don’t lose their way. (120 words/ 5428 words)