The human, and really, animal cell, has made a more than 3 billion year journey to be with us today in its present form. All life on this planet owes their humble beginnings to a shared single cell. Through all of these years, the single, then animal, then human cell has gone through many changes, adding other cells into its bigger self, evolving its DNA, until we have this cell you see before you. In investigating it, we are actually shining a light on our biological past, learning its history.
In the interactive guide to the human cell you find before you, each important structure in the cell has a plus sign next to it. Hover over the plus sign to open an explanation about that structure.
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Fascinating: How Fast Does Our Brain Operate?
Ever wonder at what speeds our thoughts move?
Do Plants Get Cancer? Yes, From Wasps.
Plants can get cancer, but they can live with it peacefully. Here's how.
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24 Unbelievable Abilities Your Body Has
The human body is a complex and endlessly fascinating machine, and it might be even more sophisticated than you know...
Quiz: How Well Do You Recall Basic Biology?
we're about to test your rudimentary understandings of biology. Do you have the required knowledge?
Breakthrough: Lion's Mane Mushrooms Boost Memory & Nerves!
Researchers have recently uncovered the mushroom's potent compounds, particularly hericene A, that could help nerve cells grow and better interact with each other.
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Fascinating: The Man Who Broke Math
This question led a logician to a discovery that would change mathematics forever.
World-Famous Psychological Experiments That Shocked Us
The human mind is a most intricate thing. It also has some quirks and idiosyncrasies that are both incredible and a little uncomfortable. Read on for more.
These 11 Brain Facts Are Enough to Boggle Your Mind
When you consider the sheer complexity of the human brain, it's difficult to wrap your head around it. Learn these 11 fascinating facts about the human brain.
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Here are Some Unique Tricks You Can Do at Home With Salt!
This video shows us a few interesting magic tricks that you can do anytime using salt, ice, and other items you can find at home.
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Are These Vintage Kitchen Gadgets Any Good?
Will any of the vintage kitchen gadgets stand the test of time or outperform their contemporary alternatives?
Science FIRST: A Fully Created Brain Inside a Computer?
Could a Computer Ever "Run" a Human Brain? Scientists Just Took a Big Step
17 Incredible Eye Facts You Have To See To Believe
They say the eyes are the window to the soul, and they also happen to be our windows to the world. Here are 17 insanely fascinating facts about eyes.
The 10 Most Elaborate Scientific Hoaxes In History!
Some hoaxes throughout history have been so believable, they managed to fool the entire world. Here are 10 of the most elaborate scientific hoaxes in history.
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Fascinating: How Does Our Digestive System Work?
This video explains how the human digestive system does its daily.
Science in 2025: 8 Developments That Could Change it All
Here are some of the most exciting trends in science and healthcare to keep an eye on.
Space Looks Breathtaking in These Amazing Photographs
There are some absolutely stunning photographs of space out there today, You won't believe how incredible it is!
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Physicist Michio Kaku: The Universe in a Nutshell...
Physicist Michio Kaku explains the fundamental nature of our universe
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Just How Small is an Atom? - Fascinating!
Just how small are atoms? And what's inside them? The answers turn out to be astounding...
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4 Super Technologies That Started Off as Failed Inventions
Check out how some of the great technological inventions of our time actually started off as failed projects.
Science Lesson: 10 Fiery Facts About the Sun You Must Know
Learn some fascinating and little-known facts about the Sun in this article.
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Neo: The New Tele-Robot that "Cleans" Your Home
Neo is a new robot that has great capabilities and is designed to clean your home. Sounds perfect right? Well, there's a catch.
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What Does the Appendix Actually DO?
Dr. Berg explains, in this video, all about the appendix and what it actually does in our body.
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Full Documentary: From First to Last Dinosaur
With stunning visuals and cutting-edge science, we’ll bring their story to life—from their very first day to their last, a saga of survival, adaptation, and mystery.
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This Video Shows You a Different Way to Look at the World
You’ve heard of the fourth dimension but do you know what it is? This TED-Ed video helps uncover a bit of the mystery.
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Science: What is Reality? Dive in and Find Out!
What if everything you see, feel, and experience isn’t real? The simulation argument suggests that our reality might be nothing more than an advanced computer program.
I Never Knew These Stunning Facts About Our Universe
If you thought you understood the universe, you'll be completely floored by this insane facts.
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Witness the Leading New Electronic Devices of 2026
The experts at CNET and PCMag were on the floor, and they've got their favorites. Let's dive in.
13 Forgotten Phone Designs That Were Too Odd to Survive
From pen-shaped dialers to phones that clipped onto your clothes, here’s a look at the most unusual phones ever made.
6 Signs That Someone is Listening on Your Cellphone Calls!
With technology advancing all the time, there is the ever-increasing chance of our phones being tapped. Here are 6 signs that your phone could be tapped.
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Fascinating: How Do Cats TRULY See Humans?
Understanding a cat's world is the key to strengthening your bond. Let's decode your cat's mind!
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Lecture: What is the Future of Humanoid Robots?
Get ready to meet the humanoid partners that will redefine how we live and work.
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24 Unbelievable Abilities Your Body Has
The human body is a complex and endlessly fascinating machine, and it might be even more sophisticated than you know...
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How Humans Helped Cats Take Over the World
The relationship between humans and cats goes back as far as 9,500 years. How did it al start? And how did humans help cats essentially take over the world?
These Underwater Craft Are Changing Marine Science
Here's a look at the most remarkable machines currently expanding our understanding of the underwater world.
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K2-18b: The Exoplanet That Might Host Alien Life
Astronomers have detected signs of posisble life in the atmosphere of exoplanet K2-18b.
Alzheimer's: What Recent Breakthroughs Have Taught Us
Now, you can discover 4 new studies that show how to do this in ways you haven’t heard of.
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Ever Wonder How a Steel Locomotor Works?
Let’s take a closer look at the engineering behind these compact workhorses.
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Despite Looking Similar, Cats Are MORE Diverse Than Dogs!
Who's more diverse, cats or dogs? This video answers this question once and for all, the it might surprise you...
7 Discoveries of Albert Einstein that Changed the World
The 7 biggest discoveries of Albert Einstein and how they changed the world forever.
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50 Years Later, We're Debunking the Moon Landing "Hoax"
How do we prove to people the moon landing was real? By answering their doubtful questions in this video.
This is How to Activate Your Brain's Ability to Learn
A recent study has shown that overlearning might improve performance in a particular task by altering the chemicals in the brain that "lock" in training.
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10 Smart Home Gadgets You Didn’t Know You Needed
If you’ve ever wanted a smarter, more efficient home, these 10 gadgets might be exactly what you need.
7 Little-Known Body Parts We Never Knew About
Here's a look at some of the weird and little-known body parts that you didn’t know you had.
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Mark Rober’s $60 Million Science Experiment
YouTube’s favorite mad scientist is launching his biggest mission yet: a $60 million reimagining of STEM education
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Discover 5 Cutting Edge Humanoid Robots in 2025
Watch the video to see which robots are leading the pack in intelligence, mobility, and impact.
Science Proves: These 10 Bible Stories Probably Did Happen
The Bible describes many seemingly supernatural cases, but today, science can show that they might have indeed happened.
Enjoy This Fascinating Collection of NASA's Best Photos!
Here are 15 of NASA's most amazing recent pictures, along with brief explanations of exactly what is going on in each one.
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