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 ...

My colleague and I have published a new study of cactus flowers which may help explain the conundrum. For more than a century ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Most people get acquainted with their appendix when it's inflamed and about to rupture. Sebastian Kaulitzki/Science Photo Library ...

An international team of researchers has developed a new theoretical framework that bridges physics and biology to provide a unified approach for understanding how complexity and evolution emerge in ...

A new study shows cultural evolution helped humans expand across Earth far faster than genetic change alone could achieve.

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 ...

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 ...

Most people know only two things about the appendix: You don’t need it – and if it bursts, you need surgery fast. That basic ...

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 ...