Ancient DNA (aDNA)

Ancient DNA (aDNA) refers to genetic material extracted from long-dead organisms, such as fossils, bones, or preserved remains. Over time, DNA degrades and breaks into smaller pieces, but scientists can recover and analyze these remnants to learn about the biology, evolution, and relationships of extinct species or ancient populations. Advances in technology have made it possible to study aDNA, shedding light on historical diseases, migration patterns, and evolutionary changes, providing a direct link to understanding life's history on Earth.