To my understanding the classifications tend to be "lies we tell to children", much like the simplified atomic models sold to first-year chemistry classes. If y

To my understanding the classifications tend to be "lies we tell to children", much like the simplified atomic models sold to first-year chemistry classes. If you're a biology major, you never really need to get the Chemistry PhD's version of atoms, right? Very broad classifications tend to be useful, in that by definition they group similar organisms. Beyond that level of detail they're useless, yes, but beyond that level of detail you're already going into the level of expertise where you're expected to recognize their uselessness. Cell Biology PhDs may or may not realize it, but they're working on tyrosine kinases, not classifications.