Schuyler W. Liphardt

This study uses mitochondrial DNA and whole-genome sequence data to analyze species boundaries, diversification times, and hybridization in Andean leaf-eared mice, finding that diversification coincided with Pleistocene climate changes and ongoing hybridization between two species.

The paper updates the Mammal Diversity Database (MDD2) to include 6,759 mammal species, showing increases in species counts and identifying trends in taxonomic and geographic knowledge over time.