Talk:Dragon/@comment-3121860-20190903022045/@comment-27045866-20190903144557

Your also forgetting that they aren't just the animals that they are based on.

In a Q&A

"20) Can monstergirls of the wolf-family (Werewolf, Hellhound, ect.) eat things that real dogs can't, such as onions? If they can't, will it work as an aphrodisiac on them similar to Vampires?[69]
 * Monster girls are living beings that are half monster and half human, so things like onions are fine. Whatever a human can eat can a monster girl eat too."

The same could be said for lactation. Other than some monsters like slimes most could probably lactate actual milk. In fact, the Echidna (a reptile) extra art shows her breast feeding her children.