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  1. Why did Bob stop losing weight? We need to talk about energy expenditure compensation

    Article • Biology Letters, October 2025, Royal Society Publishing

    Prof. Lewis Halsey

  2. Saying ‘no’ with confidence: statistical approaches to test for the absence of an effect

    Article • Biology Letters, October 2025, Royal Society Publishing

    Prof. Lewis Halsey

  3. From metabolism to coexistence: Understanding animal movement and community dynamics through energy

    Article • Individual-based Ecology, August 2025, Pensoft Publishers

    Prof. Lewis Halsey

  4. High environmental temperatures put nest excavation by ants on fast forward: they dig the same nests, faster

    Article • Insectes Sociaux, July 2025, Springer Science + Business Media

    Prof. Lewis Halsey

  5. Pigeons in a flock go cheap: a re-evaluation of the energetics of flying in cluster flocks

    Article • Biology Letters, July 2025, Royal Society Publishing

    Prof. Lewis Halsey

  6. The nurture of nature: why physical and psychological differences between the sexes are greater in healthier, wealthier societies

    Article • Biology Letters, June 2025, Royal Society Publishing

    Prof. Lewis Halsey

  7. High environmental temperatures put nest excavation by ants on fast forward: they dig the same nests, faster

    Article • March 2025, Cold Spring Harbor Laboratory Press

    Prof. Lewis Halsey

  8. The sexy and formidable male body: men’s height and weight are condition-dependent, sexually selected traits

    Article • Biology Letters, January 2025, Royal Society Publishing

    Prof. Lewis Halsey

  9. Does greater variation reside in the larger sex?

    Article • Biology Letters, November 2024, Royal Society Publishing

    Prof. Lewis Halsey

  10. Getting slimmer without dieting or exercising: zebra finches can rapidly lose mass while maintaining food intake and decreasing activity

    Article • Journal of Experimental Biology, September 2024, The Company of Biologists

    Prof. Lewis Halsey

  11. Low resting metabolic rate and increased hunger due to β-MSH and β-endorphin deletion in a canine model

    Article • Science Advances, March 2024, American Association for the Advancement of Science

    Prof. Lewis Halsey

  12. Greater male variability in daily energy expenditure develops through puberty

    Article • Biology Letters, September 2023, Royal Society Publishing

    Prof. Lewis Halsey

  13. Variability in variability: does variation in morphological and physiological traits differ between men and women?

    Article • Royal Society Open Science, September 2023, Royal Society Publishing

    Prof. Lewis Halsey

  14. Does eating less or exercising more to reduce energy availability produce distinct metabolic responses?

    Article • Philosophical Transactions of the Royal Society B Biological Sciences, July 2023, Royal Society Publishing

    Prof. Lewis Halsey

  15. Solving the conundrum of intra‐specific variation in metabolic rate: A multidisciplinary conceptual and methodological toolkit

    Article • BioEssays, April 2023, Wiley

    Prof. Lewis Halsey, Dr Charlotte Récapet

  16. The metabolic upper critical temperature of the human thermoneutral zone

    Article • Journal of Thermal Biology, December 2022, Elsevier

    Prof. Lewis Halsey

  17. Variability in energy expenditure is much greater in males than females

    Article • Journal of Human Evolution, October 2022, Elsevier

    Prof. Lewis Halsey

  18. Saving the sea turtles of Anguilla: Combining scientific data with community perspectives to inform policy decisions

    Article • Biological Conservation, April 2022, Elsevier

    Prof. Lewis Halsey

  19. The cardio‐respiratory effects of passive heating and the human thermoneutral zone

    Article • Physiological Reports, August 2021, Wiley

    Prof. Lewis Halsey

  20. Endothermy makes fishes faster but does not expand their thermal niche

    Article • Functional Ecology, June 2021, Wiley

    Prof. Lewis Halsey

  21. Not biology or culture alone: Response to El-Hout et al. (2021)

    Article • European Journal of Personality, June 2021, SAGE Publications

    Prof. Lewis Halsey

  22. Linking foraging and breeding strategies in tropical seabirds

    Article • Journal of Avian Biology, May 2021, Wiley

    Prof. Lewis Halsey

  23. Fish heating tolerance scales similarly across individual physiology and populations

    Article • Communications Biology, March 2021, Springer Science + Business Media

    Prof. Lewis Halsey

  24. Proxy problems: Why a calibration is essential for interpreting quantified changes in energy expenditure from biologging data

    Article • Functional Ecology, January 2021, Wiley

    Prof. Lewis Halsey

  25. Men, women and STEM: Why the differences and what should be done?

    Article • European Journal of Personality, January 2021, SAGE Publications

    Prof. Lewis Halsey

  26. Energetic limits: Defining the bounds and trade‐offs of successful energy management in a capital breeder

    Article • Journal of Animal Ecology, September 2020, Wiley

    Prof. Lewis Halsey

  27. Are humans evolved specialists for running in the heat? Man vs. horse races provide empirical insights

    Article • Quarterly Journal of Experimental Physiology and Cognate Medical Sciences, July 2020, Wiley

    Prof. Lewis Halsey

  28. Coping with the commute: behavioural responses to wind conditions in a foraging seabird

    Article • Journal of Avian Biology, April 2020, Wiley

    Prof. Lewis Halsey

  29. Testing for hybridisation of the Critically Endangered Iguana delicatissima on Anguilla to inform conservation efforts

    Article • Conservation Genetics, February 2020, Springer Science + Business Media

    Prof. Lewis Halsey

  30. Powering Ocean Giants: The Energetics of Shark and Ray Megafauna

    Article • Trends in Ecology & Evolution, November 2019, Elsevier

    Prof. Lewis Halsey

  31. The reign of the p -value is over: what alternative analyses could we employ to fill the power vacuum?

    Article • Biology Letters, May 2019, Royal Society Publishing

    Prof. Lewis Halsey

  32. The origin and maintenance of metabolic allometry in animals

    Article • Nature Ecology & Evolution, March 2019, Springer Science + Business Media

    Prof. Lewis Halsey

  33. Exploring the relationship between flapping behaviour and accelerometer signal during ascending flight, and a new approach to calibration

    Article • Ibis, February 2019, Wiley

    Prof. Lewis Halsey

  34. Flexibility, variability and constraint in energy management patterns across vertebrate taxa revealed by long‐term heart rate measurements

    Article • Functional Ecology, January 2019, Wiley

    Prof. Lewis Halsey

  35. Terrestrial locomotion energy costs vary considerably between species: no evidence that this is explained by rate of leg force production or ecology

    Article • Scientific Reports, January 2019, Springer Science + Business Media

    Prof. Lewis Halsey

  36. Regression dilution in energy management patterns

    Article • Journal of Experimental Biology, January 2019, The Company of Biologists

    Prof. Lewis Halsey

  37. The energetics of ‘airtime’: estimating swim power from breaching behaviour in fishes and cetaceans

    Article • Journal of Experimental Biology, January 2019, The Company of Biologists

    Prof. Lewis Halsey

  38. Does Physical Activity Age Wild Animals?

    Article • Frontiers in Ecology and Evolution, December 2018, Frontiers

    Prof. Lewis Halsey

  39. Keeping Slim When Food Is Abundant: What Energy Mechanisms Could Be at Play?

    Article • Trends in Ecology & Evolution, October 2018, Elsevier

    Prof. Lewis Halsey

  40. Latent power of basking sharks revealed by exceptional breaching events

    Article • Biology Letters, September 2018, Royal Society Publishing

    Prof. Lewis Halsey

  41. Exploring key issues of aerobic scope interpretation in ectotherms: absolute versus factorial

    Article • Reviews in Fish Biology and Fisheries, March 2018, Springer Science + Business Media

    Prof. Lewis Halsey

  42. Combining abundance and performance data reveals how temperature regulates coastal occurrences and activity of a roaming apex predator

    Article • Global Change Biology, March 2018, Wiley

    Prof. Lewis Halsey

  43. Effects of Body Mass Index on Bone Loading Due to Physical Activity

    Article • Journal of Applied Biomechanics, January 2018, Human Kinetics

    Tina Smith, Prof. Lewis Halsey

  44. Considering aspects of the 3Rs principles within experimental animal biology

    Article • Journal of Experimental Biology, September 2017, The Company of Biologists

    Prof. Lewis Halsey

  45. Does the Treadmill Support Valid Energetics Estimates of Field Locomotion?

    Article • Integrative and Comparative Biology, July 2017, Oxford University Press (OUP)

    Prof. Lewis Halsey

  46. Practice makes perfect: Performance optimisation in ‘arboreal’ parkour athletes illuminates the evolutionary ecology of great ape anatomy

    Article • Journal of Human Evolution, February 2017, Elsevier

    Prof. Lewis Halsey

  47. Relationships grow with time: a note of caution about energy expenditure-proxy correlations, focussing on accelerometry as an example

    Article • Functional Ecology, January 2017, Wiley

    Prof. Lewis Halsey

  48. Bridging the gap: parkour athletes provide new insights into locomotion energetics of arboreal apes

    Article • Proceedings of the Royal Society B Biological Sciences, November 2016, Royal Society Publishing

    Prof. Lewis Halsey

  49. Do method and species lifestyle affect measures of maximum metabolic rate in fishes?

    Article • Journal of Fish Biology, October 2016, Wiley

    Prof. Lewis Halsey

  50. Is there a trade-off between peak performance and performance breadth across temperatures for aerobic scope in teleost fishes?

    Article • Proceedings of the Royal Society B Biological Sciences, September 2016, Royal Society Publishing

    Miss Julie JH Nati, Prof. Lewis Halsey

  51. Phylogenetic comparisons of pedestrian locomotion costs: confirmations and new insights

    Article • Ecology and Evolution, August 2016, Wiley

    Prof. Lewis Halsey

  52. Energetic consequences of time‐activity budgets for a breeding seabird

    Article • Journal of Zoology, July 2016, Wiley

    Prof. Lewis Halsey

  53. Terrestrial movement energetics: current knowledge and its application to the optimising animal

    Article • Journal of Experimental Biology, May 2016, The Company of Biologists

    Prof. Lewis Halsey

  54. Ecological Influences and Morphological Correlates of Resting and Maximal Metabolic Rates across Teleost Fish Species

    Article • The American Naturalist, May 2016, University of Chicago Press

    Professor Douglas S Glazier, Prof. Lewis Halsey

  55. Fat King Penguins Are Less Steady on Their Feet

    Article • PLOS One, February 2016, PLOS

    Prof. Lewis Halsey

  56. A different angle: comparative analyses of whole-animal transport costs running uphill

    Article • Journal of Experimental Biology, January 2016, The Company of Biologists

    Prof. Lewis Halsey

  57. Effect of walking speed on the gait of king penguins: An accelerometric approach

    Article • Journal of Theoretical Biology, December 2015, Elsevier

    Prof. Lewis Halsey

  58. Interpreting behaviors from accelerometry: a method combining simplicity and objectivity

    Article • Ecology and Evolution, October 2015, Wiley

    Prof. Lewis Halsey

  59. Estimating resting metabolic rate by biologging core and subcutaneous temperature in a mammal

    Article • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, May 2015, Elsevier

    Prof. Lewis Halsey

  60. Conquering the world in leaps and bounds: hopping locomotion in toads is actually bounding

    Article • Functional Ecology, March 2015, Wiley

    Prof. Lewis Halsey

  61. The fickle P value generates irreproducible results

    Article • Nature Chemical Biology, February 2015, Springer Science + Business Media

    Prof. Lewis Halsey

  62. A cross-over experiment to investigate possible mechanisms for lower BMIs in people who habitually eat breakfast

    Article • European Journal of Clinical Nutrition, January 2015, Springer Science + Business Media

    Prof. Lewis Halsey

  63. Energy expended during horizontal jumping: investigating the effects of surface compliance

    Article • Biology Open, August 2014, The Company of Biologists

    Prof. Lewis Halsey

  64. The energy costs of wading in water

    Article • Biology Open, June 2014, The Company of Biologists

    Prof. Lewis Halsey

  65. Experimental manipulation of breakfast in normal and overweight/obese participants is associated with changes to nutrient and energy intake consumption patterns

    Article • Physiology & Behavior, June 2014, Elsevier

    Prof. Lewis Halsey

  66. Turn costs change the value of animal search paths

    Article • Ecology Letters, July 2013, Wiley

    Prof. Lewis Halsey

  67. Myths, Presumptions, and Facts about Obesity

    Article • The New England Journal of Medicine and Surgery and the Collateral Branches of Science, June 2013, New England Journal of Medicine (NEJM/MMS)

    Prof. Lewis Halsey

  68. Breakfast habits, beliefs and measures of health and wellbeing in a nationally representative UK sample

    Article • Appetite, January 2013, Elsevier

    Prof. Lewis Halsey

  69. The Energy Expenditure of Stair Climbing One Step and Two Steps at a Time: Estimations from Measures of Heart Rate

    Article • PLOS One, December 2012, PLOS

    Prof. Lewis Halsey

  70. Comparative energetics of mammalian locomotion: Humans are not different

    Article • Journal of Human Evolution, November 2012, Elsevier

    Prof. Lewis Halsey

  71. Does alcohol consumption really affect asymmetry perception? A three‐armed placebo‐controlled experimental study

    Article • Addiction, April 2012, Wiley

    Prof. Lewis Halsey

  72. 100 Years Since Scott Reached the Pole: A Century of Learning About the Physiological Demands of Antarctica

    Article • Physiological Reviews, April 2012, American Physiological Society

    Prof. Lewis Halsey

  73. Ethnic Dress, Vitamin D Intake, and Calcaneal Bone Health in Young Women in the United Kingdom

    Article • Journal of Clinical Densitometry, April 2012, Elsevier

    Prof. Lewis Halsey

  74. Tri-Axial Dynamic Acceleration as a Proxy for Animal Energy Expenditure; Should We Be Summing Values or Calculating the Vector?

    Article • PLOS One, February 2012, PLOS

    Prof. Lewis Halsey

  75. The need for speed: testing acceleration for estimating animal travel rates in terrestrial dead-reckoning systems

    Article • Zoology, February 2012, Elsevier

    Prof. Lewis Halsey

  76. Behavioural energetics of a commercial invertebrate

    Article • Journal of The Royal Society Interface, January 2012, Royal Society Publishing

    Dr Anthony Robson, Prof. Lewis Halsey

  77. Implantation reduces the negative effects of bio-logging devices on birds

    Article • Journal of Experimental Biology, January 2012, The Company of Biologists

    Prof. Lewis Halsey

  78. Optimal diving models: their development and critique requires accurate physiological understanding

    Article • Trends in Ecology & Evolution, September 2011, Elsevier

    Prof. Lewis Halsey

  79. Measuring Energy Expenditure in Sub-Adult and Hatchling Sea Turtles via Accelerometry

    Article • PLOS One, August 2011, PLOS

    Prof. Lewis Halsey

  80. Does consuming breakfast influence activity levels? An experiment into the effect of breakfast consumption on eating habits and energy expenditure

    Article • Public Health Nutrition, June 2011, Cambridge University Press

    Prof. Lewis Halsey

  81. Assessing the Validity of the Accelerometry Technique for Estimating the Energy Expenditure of Diving Double-Crested CormorantsPhalacrocorax auritus

    Article • Physiological and Biochemical Zoology, March 2011, University of Chicago Press

    Prof. Lewis Halsey

  82. Assessing the development and application of the accelerometry technique for estimating energy expenditure

    Article • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, March 2011, Elsevier

    Prof. Lewis Halsey

  83. Flow-through respirometry applied to chamber systems: Pros and cons, hints and tips

    Article • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, March 2011, Elsevier

    Prof. Lewis Halsey

  84. The challenge of measuring energy expenditure: Current field and laboratory methods

    Article • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, March 2011, Elsevier

    Prof. Lewis Halsey

  85. Attaining energy balance with the must-have toys this Christmas

    Article • BMJ, December 2010, BMJ

    Prof. Lewis Halsey

  86. Measuring foraging activity in a deep-diving bird: comparing wiggles, oesophageal temperatures and beak-opening angles as proxies of feeding

    Article • Journal of Experimental Biology, November 2010, The Company of Biologists

    Prof. Lewis Halsey

  87. Effect of anthropogenic feeding regimes on activity rhythms of laboratory mussels exposed to natural light

    Article • Hydrobiologia, September 2010, Springer Science + Business Media

    Dr Anthony Robson, Professor Carlos Garcia de Leaniz , Prof. Lewis Halsey

  88. Behavioural adaptations of mussels to varying levels of food availability and predation risk

    Article • Journal of Molluscan Studies, July 2010, Oxford University Press (OUP)

    Dr Anthony Robson, Professor Carlos Garcia de Leaniz , Prof. Lewis Halsey

  89. An explanation for enhanced perceptions of attractiveness after alcohol consumption

    Article • Alcohol, June 2010, Elsevier

    Prof. Lewis Halsey

  90. Measuring Energetics and Behaviour Using Accelerometry in Cane Toads Bufo marinus

    Article • PLOS One, April 2010, PLOS

    Prof. Lewis Halsey

  91. Changes in the foraging dive behaviour and energetics of king penguins through summer and autumn: a month by month analysis

    Article • Marine Ecology Progress Series, February 2010, Inter-Research Science Center

    Prof. Lewis Halsey

  92. The true success of nations at recent Olympic Games: comparing actual versus expected medal success

    Article • Sport in Society, December 2009, Taylor & Francis

    Prof. Lewis Halsey

  93. Accelerometry to Estimate Energy Expenditure during Activity: Best Practice with Data Loggers

    Article • Physiological and Biochemical Zoology, July 2009, University of Chicago Press

    Prof. Lewis Halsey

  94. Recording raptor behavior on the wing via accelerometry

    Article • Journal of Field Ornithology, June 2009, Resilience Alliance, Inc.

    Prof. Lewis Halsey

  95. Vocalisations of wild common marmosets are influenced by diurnal and ontogenetic factors

    Article • Primates, February 2009, Springer Science + Business Media

    Prof. Lewis Halsey

  96. Estimating energy expenditure of animals using the accelerometry technique: activity, inactivity and comparison with the heart-rate technique

    Article • Journal of Experimental Biology, February 2009, The Company of Biologists

    Prof. Lewis Halsey

  97. The relationship between oxygen consumption and body acceleration in a range of species

    Article • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, February 2009, Elsevier

    Prof. Lewis Halsey

  98. Modeling the Marine Resources Consumed in Raising a King Penguin Chick: An Energetics Approach

    Article • Physiological and Biochemical Zoology, November 2008, University of Chicago Press

    Prof. Lewis Halsey

  99. Heavier king penguins do not use more energy to walk; do changes in gait compensate when body mass is greater?

    Article • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, July 2008, Elsevier

    Prof. Lewis Halsey

  100. Recording detailed raptor behaviour on the wing: The application of accelerometry

    Article • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, July 2008, Elsevier

    Prof. Lewis Halsey

  101. Recovery from Swimming‐Induced Hypothermia in King Penguins: Effects of Nutritional Condition

    Article • Physiological and Biochemical Zoology, July 2008, University of Chicago Press

    Prof. Lewis Halsey

  102. Acceleration versus heart rate for estimating energy expenditure and speed during locomotion in animals: Tests with an easy model species, Homo sapiens

    Article • Zoology, May 2008, Elsevier

    Prof. Lewis Halsey

  103. Identification of animal movement patterns using tri-axial accelerometry

    Article • Endangered Species Research, March 2008, Inter-Research Science Center

    Prof. Lewis Halsey

  104. Alcohol Intoxication Reduces Detection of Asymmetry: An Explanation for Increased Perceptions of Facial Attractiveness after Alcohol Consumption?

    Article • Perception, January 2008, SAGE Publications

    Prof. Lewis Halsey

  105. Behavioral and Physiological Significance of Minimum Resting Metabolic Rate in King Penguins

    Article • Physiological and Biochemical Zoology, January 2008, University of Chicago Press

    Prof. Lewis Halsey

  106. Estimating the critical body mass of king penguins

    Article • Polar Biology, November 2007, Springer Science + Business Media

    Prof. Lewis Halsey

  107. Fine-scale analyses of diving energetics in king penguins Aptenodytes patagonicus: how behaviour affects costs of a foraging dive

    Article • Marine Ecology Progress Series, August 2007, Inter-Research Science Center

    Prof. Lewis Halsey

  108. 7.2. Circadian and circannual variation in metabolism in birds

    Article • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, August 2007, Elsevier

    Prof. Lewis Halsey

  109. 7.P2. King penguins modulate their behaviour such that energy costs of foraging dives do not increase as winter approaches

    Article • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, August 2007, Elsevier

    Prof. Lewis Halsey

  110. 7.P1. The apparent absence of a circadian rhythm in king wild penguins and the difficulties of obtaining resting metabolic rate

    Article • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, August 2007, Elsevier

    Prof. Lewis Halsey

  111. Observation of brown-throated three-toed sloths: mating behaviour and the simultaneous nurturing of two young

    Article • Journal of Ethology, May 2007, Springer Science + Business Media

    Prof. Lewis Halsey

  112. A thorough and quantified method for classifying seabird diving behaviour

    Article • Polar Biology, April 2007, Springer Science + Business Media

    Prof. Lewis Halsey

  113. Estimating pedestrian energetics in penguins

    Article • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, April 2007, Elsevier

    Prof. Lewis Halsey

  114. King penguins as bio-indicators? Variations in the behaviours and energetic costs of foraging dives

    Article • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology, April 2007, Elsevier

    Prof. Lewis Halsey

  115. A comparative analysis of the diving behaviour of birds and mammals

    Article • Functional Ecology, July 2006, Wiley

    Prof. Lewis Halsey

  116. A Phylogenetic Analysis of the Allometry of Diving

    Article • The American Naturalist, February 2006, University of Chicago Press

    Prof. Lewis Halsey

  117. Accounting for body condition improves allometric estimates of resting metabolic rates in fasting king penguins, Aptenodytes patagonicus

    Article • Polar Biology, January 2006, Springer Science + Business Media

    Prof. Lewis Halsey

  118. Testing optimal foraging models for air-breathing divers

    Article • Animal Behaviour, April 2003, Elsevier

    Prof. Lewis Halsey