Two of four tested giraffes seemed to be able to mentally combine numbers to get one of their favorite treats: carrots. But ...

Physicists have debated which way a submerged sprinkler sucking in water would spin. Careful experiments provide an answer.

How can you have a proof without proving anything? Mathematicians found a way and, in the process, came to blows over it – ...

Only Slate Plus members can gift Slate stories. Become a member to share 10 free articles a month. Sign up for the Slatest to get the most insightful analysis, criticism, and advice out there, ...

Fake quotes on social media. Unprecedented post-match interviews. Rumour mill in overdrive. Cristiano Ronaldo's record-equalling sixth and final World Cup was always going to grab headlines, though ...

PBS NC helps your community explore new worlds and ideas through programs that educate, inform and inspire. Your tax-deductible donation helps make it all possible.