This video traces the human evolutionary tree from great apes to modern Homo sapiens, explaining the difference between ...

Why do you have five fingers? Why not ten, or twenty, or one? Why do so many animals have five fingers? Five seems to be the perfect number for most hands. Oddly, the first vertebrates to come onto ...

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 4 billion years of our ...

This eclectic primer by Chakrabarty (A Guide to Academia), a biology professor at Louisiana State University, explores the science of evolution. The author expounds on three proposed explanations for ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

Explaining how anxiety helped our species to survive and thrive—essentially, a naturally evolved defensive response that can get triggered too easily—provides vital context and a more positive outlook ...

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 ...