Is a rare phenomenon because extremely few living things are preserved long enough after death to become fossils.?

Fossilization is indeed a rare phenomenon because it requires specific conditions to preserve organic material over long periods. Most organisms decompose quickly after death due to environmental factors and scavengers. For fossilization to occur, the remains must be buried rapidly in sediment, preventing decay and allowing minerals to replace organic material. Consequently, only a small fraction of species that have ever lived are found as fossils today.