The function of early hominins’ enlarged brow ridges, and their reduction in size in Homo sapiens, have puzzled paleoanthropologists for decades.

The researchers say that their results are evidence we haven’t yet reached a limit to human lifespan.

DNA analysis gives clues to how the ancient hominin’s population split and how they interacted with modern humans.

From DNA evidence, researchers estimate the split from other species took place between 260,000 and 350,000 years ago.

The sinoatrial node is home to multiple pacemakers that keep the heart beating if the main one falters.

Scientists have identified 40 new genes linked to human intelligence.

Diverse viruses can be found commingling with human and bacteria cells in and on people’s bodies. Scientists are just beginning to understand how these viruses help and when they can turn pathogenic.

Yawn duration also correlates with the number of cortical neurons, according to a study.

Researchers identify a human DNA element that spurs neurogenesis and brain growth when placed in mice.