George Lauder
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View article: Function of the tail in myliobatid rays: role in controlling body stability
Function of the tail in myliobatid rays: role in controlling body stability Open
Eagle rays, cownose rays and manta rays are the only batoid families exhibiting oscillatory locomotion, and are characterized by long, slender tails. This study investigates whether tail length influences body stability when the pectoral f…
View article: Computational analysis of fish-foil pairing and wake energy extraction in low-speed flow
Computational analysis of fish-foil pairing and wake energy extraction in low-speed flow Open
The energetic consequences of swimming within a neighboring fish’s vortex street remain a central question in collective locomotion. Recent flume experiments in which a flapping hydrofoil generated a biomimetic wake demonstrated that a tro…
View article: Fish locomotor variation: connecting energetics and kinematic modulation
Fish locomotor variation: connecting energetics and kinematic modulation Open
Analyses of vertebrate locomotion have frequently revealed variations in locomotor energetics and movement both among individuals and through time within an individual. This variation is often collapsed into mean values for broad comparati…
View article: Beyond planar: fish schools adopt ladder formations in 3D
Beyond planar: fish schools adopt ladder formations in 3D Open
View article: Hydrodynamic interactions of low-aspect-ratio oscillating panels in a tip-to-tip formation
Hydrodynamic interactions of low-aspect-ratio oscillating panels in a tip-to-tip formation Open
The vertical, tip-to-tip arrangement of neighboring caudal fins, common in densely packed fish schools, has received much less attention than staggered or side-by-side pairings. We explore this configuration using a canonical system of two…
View article: The tail of myliobatid rays controls body stability
The tail of myliobatid rays controls body stability Open
Eagle rays, pelagic eagle rays, cownose rays, and manta rays are the only four batoid families exhibiting oscillatory locomotion, and are characterized by expanded pectoral fins and long, slender tails that can exceed body length. This stu…
View article: Slippery and Smooth Shark Skin: How Mucus Transforms Surface Texture
Slippery and Smooth Shark Skin: How Mucus Transforms Surface Texture Open
Shark skin is covered in denticles that provide texture important for hydrodynamic function. In bony fishes, both skin texture and function are modified by mucus that covers the outermost layer of the skin and scales. Despite the similar p…
View article: Physics and physiology of fish collective movement
Physics and physiology of fish collective movement Open
View article: Quantifying the Denticle Multiverse: A Standardized Coding System to Capture Three Dimensional Morphological Variations for Quantitative Evolutionary and Ecological Studies of Elasmobranch Denticles
Quantifying the Denticle Multiverse: A Standardized Coding System to Capture Three Dimensional Morphological Variations for Quantitative Evolutionary and Ecological Studies of Elasmobranch Denticles Open
Synopsis Dermal denticles—microscopic tooth-like scales—are a major defining feature of elasmobranch skin, and are of interest to a wide array of fields, including paleontology, evolutionary biology, developmental biology, functional morph…
View article: A hydrodynamic antenna: novel lateral line system in the tail of myliobatid stingrays
A hydrodynamic antenna: novel lateral line system in the tail of myliobatid stingrays Open
Eagle rays, cownose rays and manta rays (order Myliobatiformes) have a slender tail that can be longer than the animal’s body length, but its function and structure are unknown. Using histology, immunohistochemistry and three-dimensional i…
View article: Understanding multi-fin swimming and maneuvering to develop highly capable swimming robots
Understanding multi-fin swimming and maneuvering to develop highly capable swimming robots Open
Fish swim underwater with levels of agility and maneuverability that far exceed those of contemporary unmanned underwater vehicles (UUVs). While UUVs primarily rely on rectilinear motions, fish continuously move their fins and body--pitchi…
View article: The tuna keel is a mechanosensory structure
The tuna keel is a mechanosensory structure Open
Tunas are high-performance pelagic fishes of considerable economic importance and have a suite of biological adaptations for high-speed locomotion. In contrast to our understanding of tuna body and muscle function, mechanosensory systems o…
View article: A hydrodynamic antenna: novel lateral line system in the tail of myliobatid stingrays
A hydrodynamic antenna: novel lateral line system in the tail of myliobatid stingrays Open
Eagle rays, cownose rays, and manta rays (family Myliobatidae) have a slender tail that can be longer than the animal’s body length, but its function and structure are unknown. Using histology, immunohistochemistry, and 3D imaging with mic…
View article: Patterns of dermal denticle loss in sharks
Patterns of dermal denticle loss in sharks Open
As they grow, sharks both replace lost denticles and proliferate the number of denticles by developing new (de novo) denticles without prior denticle shedding. The loss and replacement of denticles has potential impacts on the energetic co…
View article: Collective movement of schooling fish reduces the costs of locomotion in turbulent conditions
Collective movement of schooling fish reduces the costs of locomotion in turbulent conditions Open
The ecological and evolutionary benefits of energy-saving in collective behaviors are rooted in the physical principles and physiological mechanisms underpinning animal locomotion. We propose a turbulence sheltering hypothesis that collect…
View article: Studying animal locomotion with multiple data loggers: quantifying time drift between tags
Studying animal locomotion with multiple data loggers: quantifying time drift between tags Open
Temporal accuracy is a fundamental characteristic of logging technology and is needed to correlate data streams. Single biologgers sensing animal movement (accelerometers, gyroscope, magnetometers, collectively inertial measurement unit; I…
View article: Energy conservation by collective movement in schooling fish
Energy conservation by collective movement in schooling fish Open
Many animals moving through fluids exhibit highly coordinated group movement that is thought to reduce the cost of locomotion. However, direct energetic measurements demonstrating the energy-saving benefits of fluid-mediated collective mov…
View article: Author Response: Energy conservation by collective movement in schooling fish
Author Response: Energy conservation by collective movement in schooling fish Open
Full text Figures and data Side by side Abstract eLife assessment eLife digest Introduction Results Discussion Materials and methods Appendix 1 Data availability References Peer review Author response Article and author information Metrics…
View article: Collective movement of schooling fish reduces locomotor cost in turbulence
Collective movement of schooling fish reduces locomotor cost in turbulence Open
The ecological and evolutionary benefits of collective behaviours are rooted in the physical principles and physiological mechanisms underpinning animal locomotion. We propose a turbulence sheltering hypothesis that collective movements of…
View article: Energy conservation by collective movement in schooling fish
Energy conservation by collective movement in schooling fish Open
Many animals moving through fluids exhibit highly coordinated group movement that is thought to reduce the cost of locomotion. However, direct energetic measurements demonstrating the energy-saving benefits of fluid-mediated collective mov…
View article: Author Response: Energy conservation by collective movement in schooling fish
Author Response: Energy conservation by collective movement in schooling fish Open
Many animals moving through fluids exhibit highly coordinated group movement that is thought to reduce the cost of locomotion. However, direct energetic measurements demonstrating the energy-saving benefits of fluid-mediated collective mov…
View article: Fish robotics: multi-fin propulsion and the coupling of fin phase, spacing, and compliance
Fish robotics: multi-fin propulsion and the coupling of fin phase, spacing, and compliance Open
Fish coordinate the motion of their fins and body to create the time-varying forces required for swimming and agile maneuvers. To effectively adapt this biological strategy for underwater robots, it is necessary to understand how the locat…
View article: Reviewer #1 (Public Review): Energy conservation by group dynamics in schooling fish
Reviewer #1 (Public Review): Energy conservation by group dynamics in schooling fish Open
Many animals moving through fluids exhibit highly coordinated group movement that is thought to reduce the cost of locomotion. However, direct energetic measurements demonstrating the energy-saving benefits of fluid-mediated group movement…
View article: Reviewer #3 (Public Review): Energy conservation by group dynamics in schooling fish
Reviewer #3 (Public Review): Energy conservation by group dynamics in schooling fish Open
Many animals moving through fluids exhibit highly coordinated group movement that is thought to reduce the cost of locomotion. However, direct energetic measurements demonstrating the energy-saving benefits of fluid-mediated group movement…
View article: Reviewer #2 (Public Review): Energy conservation by group dynamics in schooling fish
Reviewer #2 (Public Review): Energy conservation by group dynamics in schooling fish Open
Many animals moving through fluids exhibit highly coordinated group movement that is thought to reduce the cost of locomotion. However, direct energetic measurements demonstrating the energy-saving benefits of fluid-mediated group movement…
View article: Energy conservation by collective movement in schooling fish
Energy conservation by collective movement in schooling fish Open
Many animals moving through fluids exhibit highly coordinated group movement that is thought to reduce the cost of locomotion. However, direct energetic measurements demonstrating the energy-saving benefits of fluid-mediated collective mov…
View article: Energy conservation by group dynamics in schooling fish
Energy conservation by group dynamics in schooling fish Open
Many animals moving through fluids exhibit highly coordinated group movement that is thought to reduce the cost of locomotion. However, direct energetic measurements demonstrating the energy-saving benefits of fluid-mediated group movement…
View article: The Denticle Multiverse: Morphological Diversity of Placoid Scales across Ontogeny in the Portuguese Dogfish, Centroscymnus coelolepis, and Its Systematic Implications
The Denticle Multiverse: Morphological Diversity of Placoid Scales across Ontogeny in the Portuguese Dogfish, Centroscymnus coelolepis, and Its Systematic Implications Open
Centroscymnus coelolepis is a deep-water sleeper shark and, like most sharks, it is covered in placoid scales, or dermal denticles. The morphological diversity of the dermal denticles in this species, however, has not been described in det…
View article: Energetics of collective movement in vertebrates
Energetics of collective movement in vertebrates Open
The collective directional movement of animals occurs over both short distances and longer migrations, and is a critical aspect of feeding, reproduction and the ecology of many species. Despite the implications of collective motion for lif…
View article: The role of hydrodynamics in collective motions of fish schools and bioinspired underwater robots
The role of hydrodynamics in collective motions of fish schools and bioinspired underwater robots Open
Collective behaviour defines the lives of many animal species on the Earth. Underwater swarms span several orders of magnitude in size, from coral larvae and krill to tunas and dolphins. Agent-based algorithms have modelled collective move…