Lewis, A. (2020). In Search of a Unified Theory of Sensory Perception: Possible Links between the Vibrational Mechanism of Olfaction and the Evolution of Language. Biosemiotics, 1-10. https://rdcu.be/cyrR0

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Lewis, A. (2020). Infantilizing Companion Animals through Attachment Theory: Why Shift to Behavioral Ecology-Based Paradigms for Welfare. Society & Animals, 1(aop),1-18. https://doi.org/10.1163/15685306-BJA10011

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Lewis, A. (2020). Total Umwelten Create Shared Meaning the Emergent Properties of Animal Groups as a Result of Social Signalling. Biosemiotics, 1-11. https://rdcu.be/cyrSD

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Lewis, A.(2021).Chemiosemiosis and Complex Patterned Signals: A Chemosemiotic Hypothesis of Language Evolution. Linguistic Frontiers,4(1) 10-24. https://sciendo.com/pdf/10.2478/lf-2021-0003

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Lewis, A. (2021). A Semiotic Modern Synthesis: Conducting Quantitative Studies in Zoosemiotics and Interpreting Existing Ethological Studies through a Semiotic Framework. Biosemiotics, 1-33. https://rdcu.be/cyrSH

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Lewis, A. (2021). A Biosemiotic Perspective on Reward-Based Animal Training Techniques. Biosemiotics, 1-16. https://rdcu.be/cyrSB

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Lewis, A. (2023). A Functional-Helix Conceptualization of the Emergent Properties of the Animal Kingdom: Chronoception as a Key Sensory Process. Biosemiotics, 16(1), 125-142.

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Lewis, A. (2023). A non‐adaptationist hypothesis of play behaviour. The Journal of Physiology.

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​Lewis, A. (2024). A hypothesis of teleological evolution, via endogenous acetylcholine, nitric oxide, and calmodulin pathways. Progress in Biophysics and Molecular Biology.

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