Life Science

Much like Noah, researchers are stockpiling the genes of Earth's living creatures, loading them into state-of-the art facilities and freezing them. Are scientists saving them for a rainy day?

By Robert Lamb

Who hasn't fantasized about bigger biceps? Killer abs? A rear end you could bounce a quarter off? But would you tamper with your genes to achieve that buff body?

By Susan L. Nasr

Herd immunity means that after a certain percentage of a population is immune to a disease, the whole population is. This is usually achieved through vaccination but some are not convinced.

By Alia Hoyt & Molly Edmonds

How would you like to be the person responsible for changing science and Western civilization? With the "Origin of Species," Charles Darwin did. How did this English gent become the reluctant ambassador of evolution?

By Robert Lamb

More than 50 years have passed since Watson and Crick untangled the structure of DNA and five years have elapsed since scientists finished sequencing the entire human genome. What have we figured out about our genetic material?

By Jacob Silverman

It's commonly believed that that grandpa has more knowledge than his young whippersnapper of a grandkid. But do wrinkles on the face really relate to wrinkles on the brain?

By Molly Edmonds

Think about how you would describe yourself to a stranger. Would you emphasize your keen sense of humor or physical features you're fond of? Or would you spend more time on supposed "trouble spots"? Your answer largely depends on your mental picture.

By Cristen Conger

That bowling ball of white meat in your oven is a far cry from its wild ancestors. How did a single breed of top-heavy, dim-witted birds come to dominate the turkey market?

By Maria Trimarchi

Your little brother might think it's funny to put a rubber snake in your pocket or jump out from a closet in a dark hallway, but your heart rate might disagree. Is it possible to be scared out of both your wits and your life?

By Molly Edmonds

Are you the first to complain when it's too hot or too cold at work? Extremophiles have news for you: Suck it up. These hardy microbes make most of us humans seem like whimpering Goldilocks, and studying them may tell us more than you might imagine.

By Jacob Silverman & Desiree Bowie

A society run by women doesn't have to be the mirror opposite of one run by men. What does a matriarchy look like, and is it possible you're already living in one?

By Jessika Toothman

Pasteurization is the process of removing harmful pathogens from various types of food. How was this process discovered?

By Carol White

There's a connection between our physical bodies and the way it responds to emotion -- but scientists aren't quite sure what it is. Could it be that happiness is little more than a series of neurochemical responses to the world around us?

By Josh Clark

You think you'd know what happiness was -- you've felt it before, right? Not quite. It turns out that the definition of happiness pretty much depends on who's defining it.

By Josh Clark

Studies seem to indicate that men are more likely to harbor violent tendencies than women. What factors do researchers use to come to these conclusions, and most importantly, is it true that men are more violent?

By Jonathan Strickland

Why do we help others, even if we know it will hurt us? As it turns out, the concepts of altruism and selfishness may be linked -- much more so than we thought.

By Josh Clark

If you've ever dashed into the grocery store to pick up a tube of toothpaste, you've likely been stopped in your tracks by the sheer number of options available. So why does having more options make it so much harder to make the right choice?

By Tom Scheve

As the human population soars, our ability to feed all those hungry mouths can't keep pace. How did an English economist by the name of Thomas Malthus wind up thinking about this very issue in the 19th century, and what's his connection to Darwin?

By William Harris

Every species on Earth, from the majestic humpback whale to the bacteria happily living in your gut, has a special role to play within a defined ecosystem. Can organisms ever trade their existing niches for new ones?

By William Harris

The trials of being a lefty are numerous. You jostle for elbow room at the table, use scissors that feel funny in the hand and are teased for writing oddly. But do beleaguered lefties get the last laugh in sports?

By Robert Lamb

For Jack and his beanstalk, the sky was the limit, but nature's giants hit a point at which they can't grow any taller. What prevents lofty trees like sequoias from soaring any higher?

By Jacob Silverman

Doctors always want your blood, but one day, a health care professional may ask you to open up and say, "Ptooey!" Why? Your spit holds a mother lode of biological information.

By William Harris

A gulf of difference may separate our human world of empires, science and spirituality from the animal wilds of the other great apes. But the genetic differences are pretty meager.

By Robert Lamb & Desiree Bowie

Can humans live forever? No, but thanks to the discovery of the Hayflick limit, we know that cells can conceivably divide forever without dying.

By Josh Clark

Everything has to start somewhere, including us humans. But where? Was it Africa, or were there multiple ground zeros for humanity's explosive growth and eventual world domination?

By Robert Lamb