Physics found the "zoo" of diverse particles to be inelegant (https://en.wikipedia.org/wiki/Particle_zoo). In biology, actual zoos hold a small fraction of diversity at the organismal level. The diversity at the molecular level is insanely high and the vast majority of "rules" have exceptions. Even the Central Dogma of Molecular Biology (https://en.wikipedia.org/wiki/Central_dogma_of_molecular_bio...) is a bit messy, unless stated fairly carefully (e.g., https://pubmed.ncbi.nlm.nih.gov/24965874/).