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.

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Stem cells are a controversial topic because they are grown from human embryos. Learn about the controversy and get the facts here.

We can see dinosaur and plant fossils at just about any natural museum. What exactly are fossils, though, and how do they form? Find out the answers to these questions in this article from HowStuffWorks.

With movie titles like "Attack of the Clones" and "The Clone Wars," it's no wonder human cloning makes us anxious. As scientists make startling discoveries cloning animals, are humans next?

By Kevin Bonsor & Cristen Conger

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Cloning is the process of making a genetically identical organism through nonsexual means. In this article, we will examine how cloning works and look at possible uses of this technology.

By Craig Freudenrich, Ph.D.

What is the difference between a hardwood and a softwood? How hard does a tree have to be to be considered hardwood?

Your co-worker just yawned in a meeting, and now everyone on his side of the table is yawning, too. Learn about what might've caused him to do it in the first place and why you're likely to yawn right along with them.

By Melanie Radzicki McManus

Why have some bacteria become resistant to antibiotics? Learn about the role of antibiotics in drug-resistant bacteria strains.

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The CBS drama "CSI: Crime Scene Investigation" routinely uses cutting-edge technology to solve crimes, including collecting and analyzing DNA evidence. But catching a criminal using DNA evidence is not quite as easy as "CSI" makes it seem.

By William Harris

Plants that eat other creatures? It sounds like a genetic experiment gone awry. But there's actually nothing unnatural about it; carnivorous plants have been around for thousands of years. Find out all about the Venus Flytrap.

By Ann Meeker-O'Connell

Even if you're very ticklish, you probably are incapable of tickling yourself. Learn why.

Learn about weight gain and the processes going on in your cells.

By Craig Freudenrich, Ph.D.

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The term IQ typically refers to a score on a test that measures someone's cognitive ability. What does this test constitute exactly? Find out if IQ tests can accurately measure someone's intelligence.

Nature uses color in lots of different ways. Find out why some types of cabbage are purple and what this means.

How can the grass on the greens at a golf course be so perfect? What are they doing that's different from a normal lawn? Could my lawn look like this?

There is a good chance that if you go to the grocery store and buy a bunch of grapes that they will be of the seedless variety. If the grapes are seedless, how are they able to produce new grapes? Find out the answer to that question in this article.

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The chicken or the egg question is one that gets asked on a regular basis. We get asked this question frequently, so let's take a shot at it. Which came first, the chicken or the egg? Find out the answer in this article.

How can children from the same parents look so different? I mean, why don't all kids from the same parents look exactly alike, since the parents just have one set of chromosomes each and they don't change?

Genes and genetic engineering is one of the most fascinating areas of science. It is a field that is constantly changing and evolving. What exactly are genes and how does the science of genetic engineering work? Find out in this article.

Genetically modified organisms have been around for centuries, but the controversy is really about foods that have been modified in the lab. Should we be worried about eating them?

By Alia Hoyt

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How does hemp work? What do rope and "organic clothes" and drugs have to do with each other?

We've all heard of a "sixth sense" and extra-sensory perception. So how many ways can we actually sense the world around us?

By HowStuffWorks.com Contributors

A fair number of cartoons feature "Mexican jumping beans." For example, Speedy Gonzalez is trying to outwit a foe and uses Mexican jumping beans to escape. What I want to know is: Are Mexican jumping beans for r

If you've heard of frankincense and myrrh, it's probably because you're familiar with the biblical account of Jesus' birth. But have you ever wondered what exactly it was the three wise men gifted Christ?

By Clint Pumphrey

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Grass seed can grow just about anywhere, just as long as they have plenty of water and nutrients. Can grass grow on lava rocks as well as it can on soil, though? Find out the answer to this question in this article from HowStuffWorks.

Your body temperature has an important role to play in fighting off infections from viruses like the flu. Here's how it works.