If we look across the whole of the mammal branch of the tree of life, we find there are many groups of mammals that have evolved testicles of all different sizes. In almost all these separate cases, ...

A new study from Northwestern University is reshaping how scientists think about brain evolution. The research suggests that ...

The human brain is a greedy organ. It gulps energy, demands constant upkeep, and somehow grew far larger (relative to body ...

Where do we come from and how did we evolve into the beings and bodies we are today? The new book "Eve: How the Female Body Drove 200 Million Years of Human Evolution" argues for a better ...

A new Yale study provides a fuller picture of the genetic changes that shaped the evolution of the human brain, and how the process differed from the evolution of chimpanzees. For the study, published ...

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 ...

Cat Bohannon's "Eve" is vaguely intimidating. Fine, more than a little intimidating. It's more than 600 pages, promising to cover 200 million years of human evolution. The young adult adaptation, just ...

"Human evolution has occurred both due to, and in spite of, the placenta. Every pregnancy, unthinkingly, must navigate a careful path through it. Every menstruation is testament to it. It is partly ...

Humans, who are classified among the five great apes, are closest genetically, i.e., DNA similarity, to chimpanzees (98.8%-99%) and bonobos (98.8%). [Blueringmedia ...