Embryonic evidence uncovers convergent origins of laryngeal echolocation in bats

  title={Embryonic evidence uncovers convergent origins of laryngeal echolocation in bats},
  author={Taro Nojiri and Laura A. B. Wilson and Camilo L{\'o}pez-Aguirre and Vuong Tan Tu and Shigeru Kuratani and Kai Ito and Hiroki Higashiyama and Nguyen Truong Son and Daisuke Fukui and Alexa Sadier and Karen E. Sears and Hideki Endo and Satoshi Kamihori and Daisuke Koyabu},
  journal={Current Biology},

Figures and Tables from this paper

Morphological association between muscle attachments and ossification sites in the late cartilaginous skull of tuatara embryos

Digital 3D reconstructions of the cranium, the head, and the neck musculature from a histological section series of a late term embryonic tuatara suggest that tensile forces resulting from embryonic muscle contraction are largely, but not exclusively, correlated with the area of endochondral ossification in the chondrocranium and palatoquadrate in Tuatara.

Facial muscle modification associated with chiropteran noseleaf development: Insights into the developmental basis of a movable rostral appendage in mammals

This work compares the three‐dimensional internal morphology of late‐stage embryos between the greater horseshoe bat Rhinolophus ferrumequinum, which possesses a noseleaf, and the Asian bent‐winged bat Miniopterus fuliginosus and Egyptian fruit bat Rousettus aegyptiacus, which do not.

Evolution of inner ear neuroanatomy of bats and implications for echolocation.

The observation of highly derived structures of the spiral ganglion in yangochiropteran bats: a trans-otic ganglions with a wall-less Rosenthal's canal is reported, providing direct evidence of how Yangchiroptera differentiated from Yinpterochioptera in spiral Ganglion neuroanatomy.

How the evolution of air breathing shaped hippocampal function

  • L. Jacobs
  • Biology, Psychology
    Philosophical Transactions of the Royal Society B
  • 2021
In conclusion, models of hippocampal function that are divorced from considerations of ecology and evolution fall short of explaining hippocampal diversity across mammals and even hippocampusal function in humans.

Hearing, echolocation, and beam steering from day 0 in tongue-clicking bats

Rousettus lingual echolocation appears to be a highly functional sensory system from birth and follows a different ontogeny from that of laryngeal bats, possibly owing to tongue-diet maturation effects.

Evolution of sensory systems

Functional correlates of skull shape in Chiroptera: feeding and echolocation adaptations.

This study suggests that variation in skull shape of 10 bat families is the result of adaptations to broad dietary categories and sound emission types and suggests that evolutionary constraints due to echolocation may differ between different groups within the Chiroptera.



Inferring the mammal tree: Species-level sets of phylogenies for questions in ecology, evolution, and conservation

Credible sets of mammalian phylogenetic history are developed, enabling investigations of long-standing questions in comparative biology, and finding that node ages are broadly concordant among studies, and recent rates of speciation are estimated more accurately in this study than in previous "supertree" approaches.

Prenatal development supports a single origin of laryngeal echolocation in bats

An ontogenetic study of fetal cochlear development from seven species of bats and five outgroup mammals suggests that pteropodids maintain a vestigial developmental stage indicative of past echolocation capabilities and thus support a single origin of laryngeal echlocation in bats.

Cochlea size in extant chiroptera and middle eocene microchiropterans from messel

The aim of the present study is to establish the relations of cochlea size of six fossil species of three families from Messel and 298 extant chiropterans of all major higher taxa by comparison with taxa of extant bats with known echolocation and foraging behavior.

Prenatal cranial bone development of Thomas's horseshoe bat (Rhinolophus thomasi): with special reference to petrosal morphology

The first detailed three‐dimensional description of the prenatal cranial development in bats, using Rhinolophus thomasi as a model, is provided, with particular interest to the petrosal which houses the cochlea.

Into the dark: patterns of middle ear adaptations in subterranean eulipotyphlan mammals

This work compared the middle ear morphology of eulipotyphlan species (moles, shrews and hedgehogs), a group that has radiated into various environments, such as terrestrial, aquatic and subterranean habitats, and demonstrated that subterranean adaptation should include a relatively shorter anterior process of the malleus, a enlarged incus, an enlarged stapes footplate and a reduction of the orbicular apophysis.

Whispers from vestigial nubbins: Arrested development provokes trait loss in toads

Shifts in the timing or expression of biochemical pathways that regulate the extension or differentiation of the columella after metamorphosis may be the developmental mechanism underlying convergent trait loss among toad lineages.

Six reference-quality genomes reveal evolution of bat adaptations

Bats possess extraordinary adaptations, including flight, echolocation, extreme longevity and unique immunity. High-quality genomes are crucial for understanding the molecular basis and evolution of

Muscles Lost in Our Adult Primate Ancestors Still Imprint in Us: on Muscle Evolution, Development, Variations, and Pathologies

The research summarized here emphasizes the need of future studies of the evolution, development, and prevalence of soft tissue variations and anomalies in humans, not only for the understanding of the evolutionary history but also of the phenotype and pathologies.

Cretaceous fossil reveals a new pattern in mammalian middle ear evolution

The findings suggest that the co-evolution of the primary and secondary jaw joints in allotherians was an evolutionary adaptation allowing feeding with unique palinal (longitudinal and backwards) chewing, and the evolution of the allotherian auditory apparatus was probably triggered by the functional requirements of the feeding apparatus.

Evolutionary Basis of High-Frequency Hearing in the Cochleae of Echolocators Revealed by Comparative Genomics

This study combined RNA-Seq and comparative genomic analyses to obtain insights into the comprehensive gene expression profile of the cochlea and the adaptive evolution of hearing-related genes, revealing multiple physiological processes associated with those genes found to have adaptively evolved in echolocating bats and toothed whales.