Abstract: The concept of entropy, with its extensive applications and profound implications in modern science, originated from the second law of thermodynamics and has subsequently permeated diverse disciplines including information theory, cosmology, and quantum mechanics. A thorough investigation of entropy not only enhances our understanding of fundamental natural laws but also significantly facilitates interdisciplinary integration and advancement. Focusing on this pivotal concept, this paper systematically examines entropy’s critical role in cosmic evolution and the emergence and development of life. We analyze the intrinsic relationship between life and entropy, reevaluate the fundamental mechanisms underlying life’s origins, and reconsider the significance of humanity and Earth within the cosmic context. This work aims to provide novel insights and perspectives for teaching and research in relevant fields.

Key words: Definition of entropy, Life and entropy, Cosmic entropy, Biological evolution