Do humans dance just for fun, or did it help our ancestors survive thousands of years ago? By Thea Singer.

Although certain bacteria help treat some gut disorders, they have no known benefits for healthy people. By Ferris Jabr.

Surgery that shortens intestines cures diabetes. Evidence shows the gut - not just insulin - may be responsible. By Francesco Rubino

Henry Markram Talks Brain Simulation. When will we have computers as capable as the brain? By Henry Markram.

They ruled the icy outpost for hundreds of years before their colonies collapsed. Their puzzling decline. By Zach Zorich.

California's Next-Gen Infrastructure. UC Berkeley engineers share their thoughts on the State's future. By Paul Preuss.

His prophecies earned him a reputation as a tech visionary, but many of them don't look so good on close inspection. By John Rennie

Film studios invested in magnetic-tape storage for film archiving but now struggle to keep up with the technology. By Marty Perlmutter.

Artificial intelligence has staged a revival by starting to incorporate what we know about how children learn. By Alison Gopnik.

Behind closed doors: What the Piltdown Man hoax from 1912 can teach science today. By Samuel Redman.