Life Science

From the smallest microbe to the largest mammal, Life Science explores the origins, evolution and expansion of life in all its forms. Explore a wide range of topics from biology to genetics and evolution.

You know how scientists labored to map the human genome? Well, they're back at it, only this time, they're studying what causes those thousands of genes to switch on and off.

The field of epigenetics investigates how environment, nutrition and social conditions affect gene expression. Does that mean DNA isn't destiny?

We talk about morals in relation to raising children, voting for political candidates and criticizing people who don't see eye-to-eye with us. But is morality even a choice? Or is it all in your head?

There are people who are smart, and there are people who are people-smart. The guy you want in your think tank isn't necessarily the same person you want at your birthday party. But can emotional intelligence say more about your brain than IQ can?

Do gender differences go beyond our reproductive organs? Popular culture would have you believe that men are from Mars, while women call Venus their planet of birth. Is it possible to finish the argument of nature versus nurture?

Ten-tier wedding cakes, bagels slathered with cream cheese and slim, crusty baguettes -- we owe them all to wheat. What's the story behind this ancient, ubiquitous food crop?

Have you ever suspected your neighbor was up to something illegal? He's always home and he gets midnight deliveries. Doesn't he have a job? Maybe he does, just not the kind you think.

TV shows, movies and books depict characters that have suffered a bad injury to the head and have lost their memory. But could it really happen that fast? And will their memory ever return?

Compare neuroscientists with crackerjack detectives like Nancy Drew and Hercule Poirot, and the brain docs might come up short. After all, they have yet to crack the case on five big brain mysteries.

Autumn rolls out its very own red carpet to make a fashionable arrival. So how do falling leaves change colors to dramatic hues of crimson and scarlet?

Religion is one of the three things you're never supposed to talk about if you don't want your dinner party to turn into a food fight. But what about looking at religion through the lens of science instead of faith? Is there a connection between our gray matters and pray matters?

Laugh and the world laughs with you, the saying goes. In our image gallery, experience the range of human emotions from around the world.

You only use 10 percent of that big, wrinkled mass of smarts -- unless you listen to Mozart. At least, that's what we've heard about the brain. But how many common brain beliefs are just plain wrong?

Ever hear that urban legend about waking up without your kidney? Would organ thieves have to find a new line of work if cloned organs became a reality?

With headlines about cloned meat entering our grocery stores and all that talk about Dolly the sheep, you might be surprised to learn that many animals aren't so easy to clone.

When you envision the distant future, you might picture flying cars and wars with aliens. But besides being strapped to jet packs, what will humans be like? Will our new big brains put today's homo sapiens to shame?

Parents just don't understand. Scientists didn't understand either, until they got a good look inside the teenage brain -- and what they saw turned what we thought we knew on its head.

If bigger is better, then some of us have the advantage when it comes to brainpower. Human brains (and noggins) don't all look the same. Does size really matter? And if it does, who comes out on top?

Brain mapping is an ongoing effort to provide a complete picture of the brain's structure. It's a massive project, but scientists could use it to diagnose and treat diseases, test psychotropic drugs and even figure out where sarcasm comes from.

If wisdom teeth are so wise, why do they keep sprouting in the gums of people who don't need them anymore? Should a lack of wisdom teeth give you bragging rights as a highly evolved human?

Stud fees for premier racehorses can fetch hundreds of thousands of dollars. Could you make millions by producing a champion's exact genetic double?

It sounds kind of great, right? Imagine everything you and yourself could get done. You'd be masters of the world -- wouldn't you?

Pig people sound like the stuff of a B-grade horror flick, but they're more real than you think. What do scientists hope to learn from these embryonic chimeras?

The Missyplicity Project sprang from one billionaire dog owner's desire to have his canine best friend back again. Did the project work, and how much are cloned animals like the original?

Imagine strolling down the halls of a vast library, the shelves packed with prime genetic material from society's best scholars and athletes. Is it ever going to happen?