- ?Lv 61 month agoFavourite answer
Anything with a back bone is a Vertabrate, it doesn't matter if their bones are hollow or they lay eggs. Ducks have a backbone.
Now upon saying this I have to wonder if there is any animal with bones that aren't vertebrates...
- BarryLv 61 month ago
Yes they are! They have backbones. They taste delicious too.