The human body is a machine whose many parts – from the microscopic details of our cells to our limbs, eyes, liver and brain – have been assembled in fits and starts over the four billion years of our ...
History With Kayleigh Official on MSN

Can human evolution really be explained step by step?

Human evolution is explained through branching lineages rather than a simple linear progression. Fossils, genetics, and archaeology together reveal how multiple human species emerged, interacted, and ...
A badly crushed cranium unearthed decades ago from a riverbank in central China that once defied classification is now shaking up the human family tree, according to a new analysis. Scientists ...
Our species, Homo sapiens, has been evolving for more than 300,000 years, but the story of human origins starts much earlier.