A nocturnal animal的用法和样例：
- A nocturnal animal hunts its food at night.
- The owl is a nocturnal animal whose hoots sound sad and shrill, therefore people correlate its cry to the dead.
- Nocturnal animal such as bats and owl only come out at night.
- Bats are nocturnal animal, so do owl.
- Nocturnal animals such as bats and owls only come out at night.