The balance hypothesis for the avian lumbosacral organ and an exploration of its morphological variation

KE Stanchak, C French, DJ Perkel… - Integrative Organismal …, 2020 - academic.oup.com
Birds (Aves) exhibit exceptional and diverse locomotor behaviors, including the exquisite
ability to balance on two feet. How birds so precisely control their movements may be partly …

3d anatomy of the quail lumbosacral spinal canal—implications for putative mechanosensory function

V Kamska, M Daley… - Integrative Organismal …, 2020 - academic.oup.com
Birds are diverse and agile vertebrates capable of aerial, terrestrial, aquatic, and arboreal
locomotion. Evidence suggests that birds possess a novel balance sensing organ in the …

Mechanistic hypotheses for proprioceptive sensing within the avian lumbosacral spinal cord

KE Stanchak, KE Miller, D Shikiar… - Integrative and …, 2023 - academic.oup.com
Animals need to accurately sense changes in their body position to perform complex
movements. It is increasingly clear that the vertebrate central nervous system contains a …

Specializations in the lumbosacral vertebral canal and spinal cord of birds: evidence of a function as a sense organ which is involved in the control of walking

R Necker - Journal of Comparative Physiology A, 2006 - Springer
Birds are bipedal animals with a center of gravity rostral to the insertion of the hindlimbs.
This imposes special demands on keeping balance when moving on the ground. Recently …

Form and function in the avian pelvis

TM Frank, P Dodson, BP Hedrick - Journal of Morphology, 2022 - Wiley Online Library
The avian pelvis plays a critical role in the hindlimb function of birds, connecting the
hindlimb and axial skeleton and serving as the major attachment site for proximal hindlimb …

Development and evolution of regionalization within the avian axial column

HNN Bui, HCE Larsson - Zoological Journal of the Linnean …, 2021 - academic.oup.com
The origin of birds from their terrestrial antecedents was accompanied by a wholesale
transformation of their skeleton as they transitioned from a terrestrial to aerial realm. Part of …

Comparative analysis of vestibular ecomorphology in birds

RBJ Benson, E Starmer‐Jones, RA Close… - Journal of …, 2017 - Wiley Online Library
The bony labyrinth of vertebrates houses the semicircular canals. These sense rotational
accelerations of the head and play an essential role in gaze stabilisation during locomotion …

The relationship between sternum variation and mode of locomotion in birds

TM Lowi-Merri, RBJ Benson, S Claramunt, DC Evans - BMC biology, 2021 - Springer
Background The origin of powered avian flight was a locomotor innovation that expanded
the ecological potential of maniraptoran dinosaurs, leading to remarkable variation in …

A physical model suggests that hip-localized balance sense in birds improves state estimation in perching: implications for bipedal robots

D Urbina-Meléndez, K Jalaleddini, MA Daley… - Frontiers in Robotics …, 2018 - frontiersin.org
In addition to a vestibular system, birds uniquely have a balance-sensing organ within the
pelvis, called the lumbosacral organ (LSO). The LSO is well developed in terrestrial birds …

Consequences of lost endings: caudal autotomy as a lens for focusing attention on tail function during locomotion

G Gillis, TE Higham - Journal of Experimental Biology, 2016 - journals.biologists.com
Autotomy has evolved in many animal lineages as a means of predator escape, and
involves the voluntary shedding of body parts. In vertebrates, caudal autotomy (or tail …