In many species, sex isn’t fixed for life, and some animals can switch from male to female as part of a reproductive strategy. This process, called sequential hermaphroditism, allows individuals to ...

New research from the University of St Andrews has discovered a crucial piece in the puzzle of how all animals with a spine - ...

New research from the University of St Andrews has discovered a crucial piece in the puzzle of how all animals with a spine—including all mammals, fish, reptiles and amphibians—evolved. In a paper ...

Antibodies are the immune system's precision tools for recognizing and neutralizing viruses, bacteria and other foreign ...

In a way, sequencing DNA is very simple: There's a molecule, you look at it, and you write down what you find. You'd think it would be easy—and, for any one letter in the sequence, it is. The problem ...

In fact, a growing body of research suggests that hobbies can support mental health by reducing stress, improving mood and ...

The turbocharger has brought significant improvements to automotive engines' output. In those engines, exhaust gas that leaves the cylinders after each combustion cycle is routed to the turbine, ...

For prizewinning puzzle creators, the devilish ideas are in the details. By Siobhan Roberts Friction is a force that opposes the motion of one object relative to another — and it’s always an important ...

As a kid I loved doing puzzles with my father, especially around the holidays. We would get a giant jigsaw — usually an old-timey Christmas image filled with people ice-skating and horse-drawn ...

Francis Duah does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

How do you solve the locker puzzle in Routine? Before you can access the innermost areas of the Ward, you need to track down James Mason's ID to upgrade your security clearance level. There's just one ...

USA TODAY has launched a new digital hub called USA TODAY PLAY. The platform features puzzles, crosswords, games, horoscopes, and classic comics. A free version is available with ads. Or buy a ...