Insectivora: once a taxonomic wastebasket for all weird wiggly-nosed insect-loving small mammals for more than 100 years, now split into numerous Orders that epitomize the fascinating legacy of convergent evolution in mammals.
The nearly mirror-like radiations of “Insectivorans” inspired me to study evolutionary biology, and I still use them when teaching introductory biology. How crazy is it that a hedgehog tenrec is more closely related to an elephant than to an actual hedgehog? Answer: very crazy.
After decades of conflicting data, a combination of molecular and morphological data now support several major Orders that were hidden in this wastebasket.
In addition to being a wonderful example of convergence, this story also highlights the dynamic nature of systematics and the importance of morphological AND molecular sides to the story.