In 1929, archaeologists discovered the 140,000-year-old skeleton of a young girl in Skhūl Cave. The researchers believed her ...

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, ...

Human testicles are much smaller, in proportion, to some of our primate cousins. Evolution can tell us why. But the size of ...

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 ...

The human chin has been fertile ground for arguments between scientists over its purpose. As with testicles, there are half a dozen plausible ideas to explain the evolution of the human chin.

The human chin has been fertile ground for arguments between scientists over its purpose. As with testicles, there are half a dozen plausible ideas to explain the evolution of the human chin.

In a study published in Cell on July 10, researchers reported the first comprehensive study of whole-brain projectomes of the ...

If you’re searching for insights into the state of the human condition in 2025, look no further than Puff of Smoke (due out ...

It's not easy to look at a sea spider and see an animal so representative of its kind that it may help scientists sort out ...