Hank tells us about the team of deadly ninja assassins that is tasked with protecting our bodies from all the bad guys that want to kill us - also known as our immune system.

A white blood cell that helps protect the body by engulfing and absorbing harmful bacteria, dead or dying cells, waste material, or other foreign bodies in the bloodstream and tissues.
<

br/>

A Twig Science
Glossary...

The Plague! The Black Death! You've heard of some version of this disease, which wiped out massive percentages of the global population several times in recent millenia. Terrifying, no? So what causes it? Well now we know! It's a little...

The video provides an explanation of how the immune system works to defend the body against infection from pathogens, using white blood cells. It focuses on two types of white blood cells, phagocytes and lymphocytes, describing their...