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.

Topics to Explore

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How do Mexican jumping beans work?

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

Botany / Flowering Plants, Shrubs and Trees

What Are Frankincense and Myrrh?

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 Botany / Flowering Plants, Shrubs and Trees

Can grass seed grow on a lava rock as well as it can grow on soil?

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.

Botany / Grasses

Why does your body temperature rise when you have a virus such as the flu?

Your body temperature monitored by your immune system as it fights off infection. Learn why a high temperature helps fight infection.

Life Science / Cellular & Microscopic Biology

How Cells Work

The human body is composed of about 10 trillion cells. Everything from reproduction to infections to repairing a broken bone happens down at the cellular level. Find out all about cells.

By Marshall Brain Life Science / Cellular & Microscopic Biology

How Laughter Works

In this article, we'll look at laughter -- what it is, what happens in our brains when we laugh, what makes us laugh and how it can make us healthier and happier. You'll also learn that there's a tremendous amount that no one understands yet.

By Marshall Brain Inside the Mind / Emotions

How Sleep Works

Every animal sleeps -- some more than others -- but why they do it is a mystery to scientists. Is sleep more than just beauty rest? Could skimping on it kill you? And how much do you really need?

By Marshall Brain Inside the Mind / The Human Brain