PBS
How the Egg Came First
The story of the egg spans millions of years, from the first vertebrates that dared to venture onto land to today’s mammals, including the platypus, and of course birds. Like chickens? We’re here to tell you: The egg came first.
SciShow
6 Sleeper-Agent Pathogens That Can Make You Sick
Your body usually does a great job defending you from all kinds of viruses, fungi, and bacteria. However, there are some pathogens out there that can hide from your immune system and stay dormant in your body, waiting for their...
SciShow
The Viruses That Changed Our World
While viruses can be deadly and completely wreak havoc on humanity, they can also sometimes change our world for the better. Join Hank Green for a new episode of SciShow and learn the truth about the viruses that have shaped humanity...
SciShow
4 Ways CRISPR Is More Than Just Gene Editing
While it’s probably most famous for its role in gene editing, CRISPR does more than just that: its ability to precisely cut and alter DNA could lead to new antibiotics, faster diagnosis tools, and more.
SciShow
4 Ways CRISPR Is More Than Just Gene Editing
While it’s probably most famous for its role in gene editing, CRISPR does more than just that: its ability to precisely cut and alter DNA could lead to new antibiotics, faster diagnosis tools, and more. Chapters CREATING ANTIBIOTICS 1:07...
SciShow
The Viruses That Shaped Humanity
You might get the impression that all viruses are terrible, awful, no-good things that just wreak havoc on humanity. But, surprise: The truth is way more interesting!
SciShow
How a Sick Chimp Led to a Global Pandemic: The Rise of HIV
In the first video in our two part series on HIV and AIDS, we explain how scientists figured out what HIV is, when the infection morphs into AIDS, and where they think the virus originated.
Bozeman Science
Viral Replication
Paul Andersen explains how viruses reproduce using the lytic cycle. He also shows how viruses can pick up new genetic material and how retroviruses (like HIV) can enter into the lytic cycle. He also describes the lysogenic cycle and how...
Independent Producers
Sea Slug: Animal or Plant?
Small green sea slugs puzzle scientists because they can photosynthesize energy, just like plants. These Eastern Emerald Elysia sea slugs also appear to have several different types of DNA. Scientists are hopeful these sea slugs might...
Professor Dave Explains
Human Immunodeficiency Virus (HIV)
Human Immunodeficiency Virus (HIV) is quite the infamous virus, which rose to notoriety in the 1980s once it was discovered to be the cause of AIDS, a terrible disorder of the immune system. HIV is a retrovirus, so what does that mean,...
Professor Dave Explains
Gene Therapy
When we looked at some areas of biotechnology earlier in the series, we briefly touched on gene therapy, without saying much about what it is. Now we are ready to dive into this topic and see what it is all about. If a person has a...
Professor Dave Explains
Viruses: Molecular Hijackers
Most of us know about viruses, and that they spread disease. But what is a virus exactly? Is it alive? How does it infect a host? There's a lot to discuss here! Take a look.
Getty Images
HIV particles budding. Animation of HIV (human immunodeficiency virus) budding from a host cell
HIV particles budding. Animation of HIV (human immunodeficiency virus) budding from a host cell
Getty Images
HIV particle. Animation of a rotating HIV (human immunodeficiency virus) particle
HIV particle. Animation of a rotating HIV (human immunodeficiency virus) particle
Getty Images
HIV particle infecting a cell. Animation of an HIV (human immunodeficiency virus) particle infecting a host cell
HIV particle infecting a cell. Animation of an HIV (human immunodeficiency virus) particle infecting a host cell
Getty Images
Salmonella Bacteria
Salmonella Bacteria. Bacteria colonies. Scientific and Medicine video
Getty Images
DNA uptake by a cell, animation.
In this process, a foreign strand of DNA (blue) enters the cell, and the cell's colour changes to match that of the new DNA, indicating that genes in the new DNA are being expressed. There are numerous examples of new DNA being...
AFP News Agency
CLEAN : S Korean man thought to have MERS hospitalised in Slovakia
CLEAN : S Korean man thought to have MERS hospitalised in Slovakia
Curated Video
ZAIRE: KINSHASA: PRESIDENT MOBUTU SESE SEKO ARRIVES HOME
French/Nat
Zaire's President Mobutu Sese Seko flew back into Zaire on Tuesday.
Mobutu, who has spent the last four months in Europe undergoing cancer surgery, has come back to a civil war that has uprooted tens of thousands in the east...
Sophia Learning
Sophia: Hiv and Aids
An illustrated presentation describing the transmission and treatment HIV and AIDS. [6:44]