I'm not sure specifically as I haven't read it. But generally, a light novel about 'evolution pet' might be about pets that have the ability to evolve. It could follow the adventures of the pets and their owners, and how they grow and change over time.
Survival is a common theme. Characters, whether they start as weak animals or are transformed into them, need to find ways to survive in a harsh world. Another theme is power acquisition. As they evolve, they gain new abilities and powers, which often lead to changes in their status and relationships.
Well, 'That Time I Got Reincarnated as a Slime' is also a great choice. The protagonist is reincarnated as a slime, an interesting 'animal' - like form in an RPG - like world. It has a great plot with lots of adventure, character development, and exploration of the new world.
One popular 'animal evolution light novel' could be 'Re:Monster'. It tells the story of a man who is reincarnated as a goblin and uses his knowledge from his past life to evolve in this new world filled with various creatures. Another is 'That Time I Got Reincarnated as a Slime'. The protagonist, a slime, gradually evolves and builds a powerful nation of monsters through different means.
There was a little bird named Gudong who lived in the forest. Gudong liked apples very much and would go to the fruit tree to look for apples every day. One day, it found a big red fruit and couldn't wait to eat it. But it found a hole in the fruit and couldn't eat it.
Hence, he came up with a smart idea. It gently patted the fruit with its tail in an attempt to loosen it. Then, it gently bit the fruit with its mouth in an attempt to make it easier for it to swallow. Although Gudong's tail was often stuck by the fruit, it still insisted on its own method.
Finally, he successfully swallowed the fruit. It felt very satisfied and proud at the same time. From then on, Gudong became more confident that it could find the most delicious fruit through different methods.
Gudong's story tells us that innovation and confidence are very important. Even if we encounter difficulties, we should stick to our own methods to find the best solution.
One popular one is 'So I'm a Spider, So What?'. It follows the story of a girl who is reincarnated as a spider in a dungeon. The novel details her struggles to survive and evolve in this new form.
One common theme is friendship. For example, in many novels, the animal protagonist forms a strong bond with human or other animal characters. Another theme is survival. If the story is set in a harsh environment, the animal protagonist has to fight for survival. Also, self - discovery is often seen. The animal character may start to understand its own identity and abilities better as the story progresses.
The 'brand new animal light novel' could be interesting because of its character development. The animal characters might grow and change in unexpected ways throughout the story. Also, the world - building in it could be fascinating, like creating a whole new ecosystem for these animals to exist in.