Everything is affected by magic in the air in the realm so if some creature wants to eat the Kingdom equivalent of a mallard, it knows it has to be strong enough magically to take it or risk being blown to bits the moment the unfortunate prey enters the digestive tract.
Fresdian, later Rose, is the Kingdom’s expert on all things flora and fauna and has written several books adding to the realm’s general knowledge (though it doesn’t stop her being written off as an eccentric, which suits her quite well).
The Kingdom’s wide range of terrains from mountains to deserts to swamps host a huge range of creatures, most of whom you don’t want to come across on a dark night, on any night come to that.
Plant life varies greatly in the Kingdom too from huge trees to gorse like shrubs to flowers in every imaginable colour. There is no such thing as weeds (so in that respect Eileen's Derek would consider t he realm paradise) and every village and town takes great pride in ensuring their flowers are not only in bloom, they’re at least twice the size of their nearest neighbours.
The witch community is renowned for their herbal knowledge. The good witches use their knowledge to help others. The bad ones use their knowledge to brew poisons. Dwarves are wary of apples (and old women selling them even more so!) but fruit is grown in most areas similar to that found on earth. They also have their own fruits, which tend to be luminous in colour, heavily scented, and very juicy. The reason these haven’t been named is there’s disagreement as to what they should be called given magical fruits have the nasty habit of changing shape depending on how good or bad weather conditions were.
Pets aren’t known in the Kingdom though the less temperamental magical creatures sometimes gather at the edges of settlements (depends on the habitat they prefer) and there is some interaction between them and villagers. This does not of course apply to dragons!
Humanity’s tendency to keep pets is generally approved of as long as the animals are properly cared for, on the grounds that caring for something else like this means there are some humans who aren’t polluting the planet or causing wars.
The Queen, if she were to keep a pet, would go for a cat - regal, dignified, looks after itself. Eileen would prefer a nice dog (her enemies would say it’s because she’s a bitch!) as she admires their loyalty and courage.