Bat Phylogeny Revised With New Genomes and Fossils

A comprehensive study published online on September 23, 2026, in the journal Nature has presented a substantially revised phylogeny of bats, incorporating new genome assemblies and a wealth of ancient fossil evidence. This extensive research includes all known bat families, offering an unprecedentedly detailed view of their evolutionary history and diversification. The findings challenge previous understandings of bat relationships and their global distribution patterns.

The integration of advanced genomic data with a broad collection of fossil records has allowed researchers to reconstruct the evolutionary timeline of bats with greater accuracy. This approach is crucial for understanding macroevolutionary patterns, such as the origins of major lineages and the timing of key diversification events. By analyzing both genetic sequences and morphological data from fossils, scientists can infer ancestral traits and reconstruct migration routes that shaped the current distribution of bat species across the globe. The study's reliance on "all known bat families" signifies a commitment to a holistic approach, ensuring that the resulting phylogenetic tree represents the broadest possible scope of bat diversity.

This revised phylogeny is expected to have significant implications for various fields of biological research, including evolutionary biology, paleontology, and conservation. Understanding the deep evolutionary history of bats is fundamental to appreciating their ecological roles, such as pollination and insect control, and to identifying species or lineages that may be particularly vulnerable to environmental changes. The biogeographic insights derived from this study can help explain why certain bat families are found in specific geographic regions and how they dispersed over millions of years, potentially linking continental drift and climate shifts to evolutionary trajectories. The inclusion of numerous ancient fossils provides critical calibration points for molecular clock estimates, thereby refining the dating of evolutionary divergences.

Furthermore, the study's methodology, which combines cutting-edge genomics with paleontological evidence, sets a new standard for phylogenetic research in other animal groups. The detailed analysis of genome assemblies provides insights into genetic changes that may have underpinned the evolution of key bat traits, such as flight and echolocation. The comprehensive nature of this research, encompassing both molecular and morphological data across all extant families and a substantial fossil record, aims to resolve long-standing phylogenetic uncertainties and provide a robust framework for future investigations into bat evolution and ecology. The doi for the publication is 10.1038/s41586-026-11007-3.