Assertion: hoatzin | /r/HasProperty | issue
Facets:
value: for evolutionary cladistics
type: PURPOSE
Source sentences:
text: Before any determination was made, scientists recognized that hoatzins were an issue for evolutionary cladistics, i.e., the study of how all organisms are supposedly “related.”4 About a year after that acknowledgement was published, a new study came out that attempted to relate the hoatzins to cuckoos using mitochondrial DNA (mtDNA).5