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  1. Human - Wikipedia

    Human evolution is characterized by a number of morphological, developmental, physiological, and behavioral changes that have taken place since the split between the last common ancestor of …

  2. HUMAN Definition & Meaning - Merriam-Webster

    The meaning of HUMAN is of, relating to, or characteristic of humans. How to use human in a sentence.

  3. Human body | Organs, Systems, Structure, Diagram, & Facts ...

    Jan 19, 2026 · The human body consists of trillions of cells, each capable of growth, metabolism, response to stimuli, and, with some exceptions, reproduction. Although there are some 200 different …

  4. Homo sapiens - The Smithsonian's Human Origins Program

    Jan 3, 2024 · The species that you and all other living human beings on this planet belong to is Homo sapiens. During a time of dramatic climate change 300,000 years ago, Homo sapiens evolved in Africa.

  5. What Is a Human? - Psychology Today

    Apr 20, 2025 · These things matter to some degree, of course, but they don’t answer our question. What is a human? Every human is a eukaryote, animal, vertebrate, mammal, primate, and ape.

  6. Human Definition and Examples - Biology Online Dictionary

    May 28, 2023 · Human is a term used to refer to a primate of the genus Homo. One of the distinctive features of humans is their forehead which is vertical and relatively higher than those of the earlier …

  7. Human being - New World Encyclopedia

    However, human beings not only define themselves biologically and anatomically, but also in psychological, social, and spiritual terms. Psychologically, humans have a highly developed brain …