Beetle's survival since dinosaur extinction sparks debate on evolution theory

A small beetle that survived the mass extinction 66 million years ago is raising questions about Darwin's theory of evolution. This insect has reportedly remained unchanged for at least 100 million years, entering a state researchers call "evolutionary stasis." Two recent studies from Chinese researchers and international collaborators support this finding. The studies were published in April and May in the journals Palaeoentomology and The Innovation. This discovery challenges the idea that species must constantly evolve to adapt to changing environments after major extinction events. The research was led by Cai Chenyang from the Nanjing Institute of Geology and Palaeontology.