Final answer:
The claim that newly discovered species lack diversity is false; speciation continues to produce diverse life forms, including high taxonomic level groups.
Step-by-step explanation:
The statement that newly discovered species have not been diverse is false. The process of speciation is ongoing, and as such, newly discovered species can exhibit a wide range of diversity. New species continue to be discovered across various taxonomic groups such as fish, amphibians, birds, and mammals.
The discovery of high taxonomic level groups like new phyla, orders, families, and subfamilies indicates that there is still a significant amount of biodiversity to be documented. This is especially true for microorganisms, where the vast majority of species diversity remains unclassified.
Given the overwhelming number of species that remain unknown and the steady rate at which new species are being described, the assertion of non-diversity among newly discovered species is inaccurate.
More recent discoveries have highlighted that the genetic diversity within what was thought to be single species can lead to the recognition of multiple distinct species, thus expanding our understanding of biological diversity.