Perhaps the most remarkable feature of all species, living and extinct, is their extraordinary interconnectivity. Each species on Earth can trace its roots back to the same cluster of ancestral ...

The mystery of life’s beginnings has long captivated scientists. Central to that search is LUCA—the last universal common ancestor. LUCA sits at the root of the evolutionary tree, where two great ...

Scientists use a novel application of chromosomal analysis to finally answer a question that has challenged biologists for over a century. When you purchase through links on our site, we may earn an ...