Can a Duck Also Become a Fairy?

"'When you become immortal and ascend, the world and the earth live together.' What an enviable legend! It's a pity, it's a pity that in today's world, no one has become an immortal for thousands of years." "I want to ask a question." "You said." "Can only humans become immortals?" "You can also have spirits. If you're far away, you'll see dragons, phoenixes, turtles, and lins. If you're close, you'll see foxes, willows, etc..." "Then, can a duck also become an immortal?"