What story of roald dahl is about a fantastic animal?

There are a few Roald Dahl stories that feature fantastic animals, but the most prominent one is likely "The BFG", which features a Big Friendly Giant who befriends a young girl named Sophie. The BFG is a giant who lives in Giant Country and eats snozzcumbers and frobscottle. He is a kind and gentle giant who helps Sophie collect dreams from the Dream Country.

Other Roald Dahl stories with fantastic animals include:

* "James and the Giant Peach": This story features a giant peach filled with giant insects, including a giant grasshopper, a giant spider, a giant earthworm, and a giant glowworm.

* "The Twits": This story features two nasty old people, Mr. and Mrs. Twit, who are constantly playing tricks on each other and on their pet monkey, Mr. Twit.

* "Fantastic Mr. Fox": This story features a clever fox who outsmarts three nasty farmers who are trying to catch him and his family.

These are just a few examples, and there are many other Roald Dahl stories that feature fantastical elements.