The body of water known for its unique biodiversity, created by a tectonic shift, is the Galápagos Islands. Located in the Pacific Ocean, this archipelago is famous for its diverse species, many of which are endemic. The islands were formed by volcanic activity and are situated where tectonic plates meet. This geological history has given rise to a rich array of flora and fauna, influencing the studies of evolution and natural selection. The work of Charles Darwin here helped shape the principles of evolutionary biology, making the Galápagos a vital site for ecological research.