Hiking the Franconia Ridge Loop is an intimidating proposition. The trail, in the heart of New Hampshire’s White Mountain National Forest, is close to 9 miles long, and peaks at…

Brain “plasticity” is one of the great discoveries in modern science, but neuroscientist David Eagleman thinks the word is misleading. Unlike plastic, which molds and then retains…

Don’t look at the clock! Now tell me: How much time has passed since you first logged on to your computer today? Time may be a property of physics, but it is also a property of the…

You might say the brain is our most photogenic organ. We are, thanks to modern neuroimaging, living amid an explosion of brain data. Just consider: We can zoom into the brain’s connectivity…

The scientists crowded around Yuanchao Xue’s petri dish. They couldn’t identify the cells that they were seeing. “We saw a lot of cells with spikes growing out of the cell surface,”…

Over the past century, scientists have unlocked many of the most profound secrets of bacon, eggs, oatmeal, and avocado toast, advancing our understanding of the day’s most important…

Helen Fisher first appeared in Nautilus in 2015 with her article, “Casual Sex May Be Improving America’s Marriages.” Since then we’ve interviewed the biological anthropologist…

Karl Friston wanted me to know he had plenty of time. That wasn’t quite true. He just didn’t want our conversation—about his passion, the physics of mental life—to end. Once…

In the bowels of an animal research facility at Oxford University, mice are stirring in cages. Half of them have been given an injection of saline solution and behave like the docile…

It may seem absurd to compare a tiny fruit fly’s brain to that of a majestic elephant. Yet it is the dream of many neuroscientists to find deep rules that very different brains share.…