SciShow
Your Bones Do More Than You Think
Bones, you probably have them and they're for more than holding your body upright.
Amoeba Sisters
Mitosis: The Amazing Cell Process that Uses Division to Multiply! (Updated)
Updated Mitosis Video. The Amoeba Sisters walk you through the reason for mitosis with mnemonics for prophase, metaphase, anaphase, and telophase. Table of Contents: 00:00 Intro 0:44 Why is Mitosis Important? 2:00 Why Don't You Want...
Amoeba Sisters
Homeostasis and Negative/Positive Feedback
Explore homeostasis with the Amoeba Sisters and learn how homeostasis relates to feedback in the human body. This video gives examples of negative feedback (temperature and blood glucose regulation) and positive feedback (events in...
Bozeman Science
Finding Stomata
Paul Andersen shows you how to find stomata in a dicot and monocot leaf using finger nail polish and transparent tape. A microscope is required to actually see the stomata.
SciShow
9 Poisonous Plants You Might Have Around Your House
Houseplants can be great for your mental health, but eating some of them can be far worse for your bodily health than you might think. Chapters View all DIEFFENBACHIA 0:47 2 DAFFODILS 2:44 OLEANDER 3:42 RHODODENDRONS 4:39 LILY OF THE...
SciShow Kids
Your Super Skeleton!
Maybe you’ve seen skeletons in museums, or in Halloween decorations, but do you know how powerful your skeleton really is? Learn some fun facts about your bones!
SciShow
Animal Magnetism: How Animals Navigate
Hank tells us about new research into the question of how animals navigate from place to place - while the problem is still unresolved, we do have some hypotheses, and they all involve something called "magnetoreception."
SciShow
Are Viruses Alive?
Viruses all around us, they evolve, grow, and can be killed. But are they alive?
TED-Ed
TED-Ed: How to make a mummy - Len Bloch
As anyone who's seen a mummy knows, ancient Egyptian priests went to a lot of trouble to evade decomposition. But how successful were they? Len Bloch details the mummification process and examines its results thousands of years later.
Crash Course
Immune System, part 2: Crash Course A&P
In the penultimate episode of Crash Course Anatomy & Physiology, Hank explains your adaptive immune system. The adaptive immune system's humoral response guards extracellular terrain against pathogens. Hank also explains B cells,...
SciShow
How Do Animals Change Color?
Changing colors -- it’s not just for chameleons! Many species of octopuses, squid and cuttlefish can do it, as well as a few insects, and even mammals and birds. Find out what feats of biology different animals use to change their...
Bozeman Science
Abiogenesis
Paul Andersen describes how life could have formed on our planet through natural processes. The progression from monomers, to polymers, to protocells and finally to cells is described. The Miller-Urey experiment is described in detail as...
SciShow
Having Six Fingers Is a Dominant Trait
Genetics are extremely complicated—so complicated that having an extra finger or toe, for example, is exceedingly rare despite it being caused by a dominant gene.
SciShow
How Cells Got Their Membranes (Maybe) | SciShow News
For life to evolve on Earth, a bunch of complex organic molecules had to evolve a way to assemble into cells. So how did those proto-cells get cell membranes? Some researchers have a new hunch. Also, scientists are borrowing a trick from...
Crash Course
Biomaterials: Crash Course Engineering #24
We’ve talked about different materials engineers use to build things in the world, but there’s a special category of materials they turn to when building things to go inside our bodies. In this episode we’ll explore the world...
Crash Course
Tissues, Part 1: Crash Course A&P
In this episode of Crash Course Anatomy & Physiology, Hank gives you a brief history of histology and introduces you to the different types and functions of your body's tissues. -- Table of Contents: Nervous, Muscle, Epithelial &...
Crash Course
Tissues, Part 4 - Types of Connective Tissues: Crash Course A&P
Today Hank wraps up our look at Connective Tissues with a discussion of its various types and a breakdown of what you can and can't easily break down. Also chicken. -- Table of Contents: Loose and Dense Connective Tissue 2:10.4 Areolar,...
Crash Course
Tissues, Part 3 - Connective Tissues: Crash Course A&P
On today's episode of Crash Course Anatomy & Physiology, Hank continues our exploration of tissues, with an introduction to your connective tissues. -- Table of Contents: Four Types of Connective Tissue 2:34.2 All Develop From Mesenchyme...
SciShow
Healing Hearts, Space Jewelry, and the Newest Mammal
Hank reveals the latest discoveries, including a way to make new, beating heart cells, ancient Egyptian jewelry made from meteorites, and the first mammal to be discovered in the Americas in 35 years, the adorable olinguito.
Crash Course
Reproductive System, part 4 - Pregnancy & Development: Crash Course A&P
We've reached the grand finale of our four part series on human reproduction: BABIES! Today Hank walks you through the stages of pregnancy, beginning with how a zygote develops into blastomeres to a morula to a blastocyst and finally to...
SciShow
The Science of Getting (and Getting Rid of) a Tattoo
Why are tattoos permanent? How do you deliver the ink? And how do you remove a tattoo if you no longer want it?
SciShow
The Hamster That Saved Thousands of COVID Patients
Forget lab rats — meet the Chinese or striped-back hamster, an unassuming little rodent whose role in research over the years has led to breakthroughs in genetics, pharmaceutics and more!
Be Smart
Science of Marathon Running
So maybe we can't outrun cheetahs or antelope, but humans are uniquely adapted for long distance running. What does science have to say about marathon running? To find out, (and because I was feeling a little crazy) I decided to run one!...
SciShow
8 Mind-Blowing Optical Illusions
Your brain does its best to inform you about the world around you, but sometimes it gets tricked. Enjoy eight optical illusions to test your brain's sensory input.