In spite of all the scientific efforts by Darwinists, the origin of complete metamorphosis in holometabolan insects remains an unsolved mystery.
Soil biodiversity is still a black box. Some scientists are beginning to explore the global underground that services the health of plants and animals.
In modern paleontology it is still a very common phenomenon that fossils are over-interpreted by the scientists and over-hyped in the media.
If you are a pine tree, you need to have antifreeze in your needles if you are rooted beyond certain latitudes or elevations.
Just as vertebrates differ greatly in intelligence and sentience, invertebrates may differ greatly too.