Researchers Built New Bat Family Tree
A study traced the origins of bat flight and laryngeal echolocation back to the late Paleocene.
Updated on Oct. 6, 2026 in Life Sciences
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Scientists have mapped a new family tree for bats using chromosome-level genome assemblies from 103 living species. The analysis combines genetic data with fossil evidence to clarify the evolutionary history of flight.
Why it matters
Previous evolutionary studies were limited by fragmented genome data and sparse fossil records. This new approach resolves conflicting signals, providing a more reliable timeline for how bats developed key traits.
The study utilized the X-linked recombination desert (XLRD), a region conserved across mammals for 100 million years, to resolve evolutionary conflicts. Researchers incorporated 44 fossils to calibrate findings across 21 recognized bat families.
The players
Nature
This is a peer-reviewed scientific journal that publishes high-impact research across a wide range of academic disciplines.
Texas A&M University
This is a public research university that served as the home institution for the team conducting the bat genomic analysis.
Bat1K consortium
This is an international research collaboration focused on sequencing and analyzing the genomes of all living bat species.
The details
The research team employed recombination-aware phylogenomics to interpret complex evolutionary data, identifying Madagascar's sucker-footed bats as the earliest branch of a major group. These findings help pin the emergence of powered flight and laryngeal echolocation to the late Paleocene.
Timeline
100 million years ago: The period during which the XLRD began its conservation across mammals.
Late Paleocene: The era when bats and the ability for powered flight first originated.
October 6, 2026: The date study findings were published in the journal Nature.
The Big Picture
This research follows the roadmap set by the Bat1K consortium, which aims to generate reference-quality genomes for every living bat species. By bridging genetic analysis with fossil data, the study refines the paradigm of mammalian evolution.
While this research focuses on ancient evolutionary paths, the genomic methods used to resolve conflicting data can accelerate the study of modern biodiversity. These techniques may eventually aid in tracking how traits adapt to changing environments in various mammals.
The takeaway
This study demonstrates how combining high-quality genomic assemblies with fossil records can resolve ancient biological mysteries. Readers can look forward to future genetic mapping projects as researchers work to complete the full Bat1K catalog.
Further reading
For more information on genetic mapping, visit the Life Sciences section.
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