Body size stands as one of the most influential traits in the history of life, affecting physiology, ecology and evolutionary trajectories. In paleobiological systems, the study of size evolution ...

The water-to-land transition stands as one of the most significant events in vertebrate evolution, giving rise to the two major groups of living land vertebrates—amniotes and lissamphibians—which ...

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 ...

A team of biologists in Montana and Germany has found that, regardless of type, those insects that express a protective stick- or leaf-like appearance all evolved the same basic body parts. In their ...

One of the most consequential evolutionary truths of our species is the dramatic increase in the size of our brains. Our closest animal relative had no such brain boom. So what gives? And what does ...