+A "living fossil" describes an extant [species](/wiki/species) that has retained primitive characteristics, appearing remarkably similar to its ancient ancestors in the [fossil record](/wiki/fossil_record). These organisms offer a unique glimpse into deep time, often representing the last branch of once-diverse lineages.
+## See also
+- [Evolution](/wiki/evolution)
+- [Paleontology](/wiki/paleontology)
+- [Extinction](/wiki/extinction)
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