Life of Pi Plot reminder

This is a very short summery of what happens through the novel but it has reminded me of the basics.

Life of Pi is divided into three parts. In the first, the main character, Pi, an adult, reminisces about his childhood. Piscine Molitor Patel ("Pi") was named after a swimming pool. He changes his name to Pi when he began to attend secondary school, because he was tired of being mistakenly called "Pissing Patel." His parents own a zoo. Pi was born a Hindu, but as the fourteen-year-old is introduced to Christianity and Islam, he starts to follow three religions. He tries to understand God through the lens of each religion and comes to recognize the benefits of each. Eventually, his family decides to move to Canada for political concerns.

In the second part, the boat to Canada carrying Pi's family and most of the animals in their zoo sinks! Pi ends up with a Bengal tiger named Richard Parker, a hyena, a zebra, and an orang-utan named Orange Juice in a small lifeboat. The other humans and animals on the boat drown. The hyena tears off the zebra's leg and spends the next several days eating the zebra bit by bit. The hungry hyena kills "Orange Juice", despite her not being a natural prey of the hyena. Richard Parker eats the hyena because he was also hungry. Pi is left as the only other survivor. Pi finds food and water supplies on the boat, but as they grow scarce, Pi begins fishing for himself and Richard Parker, whom he keeps fed so Richard Parker will not seek to eat him. Pi also wants to keep Richard Parker alive because he wishes not to be left in solitude on the ocean. Pi ensures, with his knowledge as the son of a zoo-keeper, that Richard Parker considers Pi the alpha animal and therefore refrains from attacking the him. Pi manages to stay alive for 227 days, often half in delusion with thirst and hunger. The lifeboat reaches the coast of Mexico.

The third part is a conversation between two officials from the Japanese maritime department. They seek to ascertain why the ship sunk, so they interview Pi, but they do not believe him. Pi tells another story, in which the orang-utan is his mother, the zebra is a sailor with a broken leg, and the hyena is a cook who killed Pi's mother and ate the sailor. Richard Parker is Pi himself. Pi asks the officials which of the two stories they prefer. They say the story with the animals.