The human body is a machine whose many parts – from the microscopic details of our cells to our limbs, eyes, liver and brain – have been assembled in fits and starts over the four billion years of our ...

Every time a virus invades a person, it collides with thousands of years of human history. A study led by researchers at the USC Dornsife College of Letters, Arts and Sciences and Howard University ...

How are your knees doing? Do they crackle like a campfire when you get off the couch? Do they send sharp, nagging pains reminding you to sit down if you've been standing too long? You're not alone.

Most people know only two things about the appendix: You don't need it—and if it bursts, you need surgery fast. That basic story traces back at least to Charles Darwin, the English naturalist who ...

Teachers often face difficult questions about evolution, many from parents and others who object to evolution being taught. Science has good answers to these questions, answers that draw on the ...

Nobody likes to wait, and we are willing to pay to avoid it. Expedited shipping, fast food and video streaming are all profitable because they reduce or eliminate that wait. You can test this by ...

About 66 million years ago, the asteroid impact that ended the age of dinosaurs triggered major ecological changes, creating opportunities for new animal species to emerge. Ants appear to have ...

Laugh all you want now about Grandma's 8 p.m. bedtime; after reading this, you might just want to thank her. One team of researchers report that older adults' earlier body clocks may have evolved to ...

Depression feels weird compared to things like fear or anger, which help us survive by warning us of danger or pushing us into action. Instead, it slows us down, saps our energy, and makes us pull ...

The human body is a machine whose many parts—from the microscopic details of our cells to our limbs, eyes, liver and brain—have been assembled in fits and starts over the 4 billion years of our ...