Large inclusions are rarely found in amber, because animals either managed to escape from the sticky trap, or other predators took them out as an tasty morsel.
The largest inclusions recorded to date are very rare reptiles like lizards or geckos, massive body cockroaches and dragonflies with their large wingspan as well as daddy longlegs (opiliones).
Rarely we find large plant inclusions like leaves or wood.
The specific nature of amber, how accurately it preserves ancient organisms and how it makes it possible to view the smallest parts of inclusions in 3D all mean that it is not the inclusion’s size that matters.