All
Search
Images
Videos
Maps
News
More
Shopping
Flights
Travel
Notebook
Report an inappropriate content
Please select one of the options below.
Not Relevant
Offensive
Adult
Child Sexual Abuse
Length
All
Short (less than 5 minutes)
Medium (5-20 minutes)
Long (more than 20 minutes)
Date
All
Past 24 hours
Past week
Past month
Past year
Resolution
All
Lower than 360p
360p or higher
480p or higher
720p or higher
1080p or higher
Source
All
Dailymotion
Vimeo
Metacafe
Hulu
VEVO
Myspace
MTV
CBS
Fox
CNN
MSN
Price
All
Free
Paid
Clear filters
SafeSearch:
Moderate
Strict
Moderate (default)
Off
Filter
7:49
YouTube
Kurzgesagt – In a Nutshell
The Immune System Explained I – Bacteria Infection
Every second of your life you are under attack. Bacteria, viruses, spores and more living stuff wants to enter your body and use its resources for itself. The immune system is a powerful army of cells that fights like a T-Rex on speed and sacrifices itself for your survival. Without it you would die in no time. This sounds simple but the ...
54.3M views
Jul 1, 2014
Kurzgesagt Science Videos
1:11
Dig Deep, Power a City
YouTube
Kurzgesagt – In a Nutshell
252.1K views
3 days ago
16:04
Genetic Engineering Will Change Everything Forever – CRISPR
YouTube
Kurzgesagt – In a Nutshell
30.4M views
Aug 10, 2016
14:11
We WILL Fix Climate Change!
YouTube
Kurzgesagt – In a Nutshell
11.8M views
Apr 5, 2022
Top videos
7:10
The Most Dangerous Stuff in the Universe - Strange Stars Explained
YouTube
Kurzgesagt – In a Nutshell
23.4M views
Apr 14, 2019
13:31
Black Hole's Evil Twin - Gravastars Explained
YouTube
Kurzgesagt – In a Nutshell
7.6M views
10 months ago
8:09
Wormholes Explained – Breaking Spacetime
YouTube
Kurzgesagt – In a Nutshell
25.1M views
Aug 12, 2018
Kurzgesagt Philosophy Videos
9:13
Worst Nuclear Accidents in History
YouTube
Kurzgesagt – In a Nutshell
10.7M views
Feb 2, 2021
11:21
The Paradox of an Infinite Universe
YouTube
Kurzgesagt – In a Nutshell
9.9M views
Feb 27, 2024
11:40
How The Dinosaurs Actually Died
YouTube
Kurzgesagt – In a Nutshell
8.1M views
Mar 26, 2024
7:10
The Most Dangerous Stuff in the Universe - Strange Stars Explained
23.4M views
Apr 14, 2019
YouTube
Kurzgesagt – In a Nutshell
13:31
Black Hole's Evil Twin - Gravastars Explained
7.6M views
10 months ago
YouTube
Kurzgesagt – In a Nutshell
8:09
Wormholes Explained – Breaking Spacetime
25.1M views
Aug 12, 2018
YouTube
Kurzgesagt – In a Nutshell
7:17
Quantum Computers Explained – Limits of Human Technology
19.2M views
Dec 8, 2015
YouTube
Kurzgesagt – In a Nutshell
11:48
How Evolution works
11.2M views
Jul 11, 2013
YouTube
Kurzgesagt – In a Nutshell
10:48
How The Immune System ACTUALLY Works – IMMUNE
24.9M views
Aug 10, 2021
YouTube
Kurzgesagt – In a Nutshell
5:57
What Is Life? Is Death Real?
14.1M views
Dec 11, 2014
YouTube
Kurzgesagt – In a Nutshell
3:34
How The Stock Exchange Works (For Dummies)
8.5M views
Nov 28, 2013
YouTube
Kurzgesagt – In a Nutshell
6:21
The Fermi Paradox — Where Are All The Aliens? (1/2)
34.7M views
May 6, 2015
YouTube
Kurzgesagt – In a Nutshell
See more videos
More like this
Feedback