https://www.khanacademy.org/science/ap-biology/natural-selection/speciation/v/species 2023-09-14T11:22:40.102153098Z Species Taxonomy comes to life through the exploration of species, defined as groups of animals that can interbreed to produce fertile offspring. Examples of species include lions, tigers, and horses. Hybrids are the offspring of different species, which are usually infertile. Examples of hybrids include mules and ligers.  Sal Khan video https://cdn.kastatic.org/googleusercontent/SSyESxJx1DwDi3q_MtVulI31Ts-7syyccoQYJVUB8Q3RDltenKUu_FodMnwQsAR8DMV8ZJ31k5ysb9uiSXAeqNegDg Species Taxonomy comes to life through the exploration of species, defined as groups of animals that can interbreed to produce fertile offspring. Examples of species include lions, tigers, and horses. Hybrids are the offspring of different species, which are usually infertile. Examples of hybrids include mules and ligers.  https://cdn.kastatic.org/ka-youtube-converted/Tmt4zrDK3dA.mp4/Tmt4zrDK3dA.mp4 529 Concept and use of a classification system https://www.khanacademy.org/science/ap-biology/natural-selection/phylogeny/v/taxonomy-and-the-tree-of-life 2023-05-16T11:42:45.366417523Z Taxonomy and the tree of life Carl Linnaeus, the father of modern taxonomy, developed a system for classifying living organisms into categories like species, genus, order, class, and kingdom. This tree of life helps us understand relationships between organisms. Taxonomy is both an art and a science, with DNA analysis now playing a significant role. Humans are also classified within this system, highlighting our connections to other life forms. Sal Khan video https://cdn.kastatic.org/googleusercontent/_cTcPRE1Ke3kf-p0NQLh6au8QtcuZubeXmUeKoxo15EzNDJ7Ktu0QLhU18wnY-_SLsUOCeeNAY-AYq9OU50_zHs Taxonomy and the tree of life Carl Linnaeus, the father of modern taxonomy, developed a system for classifying living organisms into categories like species, genus, order, class, and kingdom. This tree of life helps us understand relationships between organisms. Taxonomy is both an art and a science, with DNA analysis now playing a significant role. Humans are also classified within this system, highlighting our connections to other life forms. https://cdn.kastatic.org/ka-youtube-converted/oHvLlS_Sc54.mp4/oHvLlS_Sc54.mp4 761 Concept and use of a classification system https://www.khanacademy.org/science/cambridge-o-level-biology-cie/x2a084a90105205d2:classification/x2a084a90105205d2:concept-and-use-of-a-classification-system/v/systems-of-classification-pk 2025-12-18T03:40:48.390254156Z Systems of Classification Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Systems of Classification Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/ksaK_QERNG8.mp4/ksaK_QERNG8.mp4 500 Concept and use of a classification system https://www.khanacademy.org/science/cambridge-o-level-biology-cie/x2a084a90105205d2:classification/x2a084a90105205d2:concept-and-use-of-a-classification-system/a/binomial-nomenclature 2025-05-22T20:32:53.453870152Z Binomial Nomenclature How organisms are named scientifically. article https://www.khanacademy.org/science/cambridge-o-level-biology-cie/x2a084a90105205d2:classification/x2a084a90105205d2:concept-and-use-of-a-classification-system/e/biological-classification 2026-03-06T17:50:38.494926415Z Biological classification The exercise explores the hierarchy of classification groups, the relationship between evolution and classification, and binomial nomenclature. Moumita Sen exercise https://www.khanacademy.org/science/cambridge-o-level-biology-cie/x2a084a90105205d2:classification/x2a084a90105205d2:concept-and-use-of-a-classification-system/e/introduction-to-biological-classification 2026-04-08T00:36:09.500768563Z Introduction to Biological Classification Prokaryotes and eukaryotes and systems of classification Moumita Sen exercise