Be Smart
Could You Be Immune To Everything?
Do you remember having a cold in 5th grade? Or the flu a couple years ago? Your immune system does. Our bodies hold many levels of immune defense. Millions of B cells and T cells and antibodies are constantly on patrol for germs and...
TED Talks
TED: How CRISPR lets us edit our DNA | Jennifer Doudna
Geneticist Jennifer Doudna co-invented a groundbreaking new technology for editing genes, called CRISPR-Cas9. The tool allows scientists to make precise edits to DNA strands, which could lead to treatments for genetic diseases ... but...
Crash Course
Meiosis: Where the Sex Starts - Crash Course Biology
Hank gets down to the nitty gritty about meiosis, the special type of cell division that is necessary for sexual reproduction in eukaryotic organisms.
SciShow
Antlers: The Secret to Deer's Cancer-Fighting Superpowers
Antler cells divide really fast, and with their super-fast growth, antlers resemble tumors in some ways. But animals in the deer family are less likely to get cancer than many other organisms, and a recent genetics study may have...
TED-Ed
TED-Ed: Can steroids save your life? | Anees Bahji
Steroids: they're infamous for their use in sports. But they're also found in inhalers, creams to treat poison ivy and eczema, and shots to ease inflammation. The steroids in these medicines aren't the same as those used to build muscle....
SciShow
Does Radiation Make Air Travel Dangerous?
Radiation is all around us, and when you travel by plane, you're exposed to cosmic radiation. So what does this mean for our health? Does air travel expose us to unsafe radiation levels? Check out this episode to see how flying among...
TED-Ed
TED-ED: Why do animals have such different lifespans? - Joao Pedro de Magalhaes
For the microscopic lab worm C. elegans, life equates to just a few short weeks on Earth. The bowhead whale, on the other hand, can live over two hundred years. Why are these lifespans so different? And what does it really mean to 'age'...
TED-Ed
TED-Ed: Meet the tardigrade, the toughest animal on Earth - Thomas Boothby
Without water, a human can only survive for about 100 hours. But there's a creature so resilient that it can go without it for decades. This 1-millimeter animal can survive both the hottest and coldest environments on earth, and can even...
Bozeman Science
Integumentary System
In this video Paul Andersen details the important structures and functions of the integumentary system. The integumentary system includes the skin, hair and nails in humans.
TED-Ed
TED-ED: Who's at risk for colon cancer? - Amit H. Sachdev and Frank G. Gress
Colon cancer is one of the leading causes of cancer and cancer death in the world. It is also one of the most preventable types of cancer, as it often takes about ten years for a small polyp to grow and develop into a cancerous one. So...
TED-Ed
TED-Ed: How do vitamins work? - Ginnie Trinh Nguyen
Vitamins are the building blocks that keep our bodies running; they help build muscle and bone, capture energy, heal wounds and more. But if our body doesn't create vitamins, how do they get into our system? Ginnie Trinh Nguyen describes...
SciShow
3 Amazing Photosynthetic Animals
Hank's love affair with plants takes a slight hit now that he's learned about several animal species that can photosynthesize. Fortunately, he's excited enough about these animals to share them with all of us! Let SciShow introduce you...
SciShow
6 Foods That Are Toxic If You Prepare Them Incorrectly
We prepare a lot of our food to make it safer to eat, but a piece of bread probably won’t hurt you if it’s not made correctly. These six foods, on the other hand, definitely can. Chapters KIDNEY BEANS 0:29 CASSAVA 1:42 3 ACKEE FRUIT 4:21...
SciShow
Hydroxychloroquine and COVID-19: What We Know Right Now | SciShow News
You might have heard that we found a cure for the COVID-19, and that it comes from a drug we've used for centuries. But let's take a breath and look at the facts.
SciShow
Could You Get Pregnant in Space?
Researchers are already trying to figure out if people can make space babies. If we need to live in space long-term, will our species be able to reproduce?
SciShow
The Second-Ever Case of Full HIV Remission | SciShow News
There’s still a lot of work to be done before HIV is cured, but this week scientists reported the second-ever case of full HIV remission in a patient.
TED-Ed
TED-Ed: These animals are also plants ... wait, what? | Luka Seamus Wright
The species of slug known as Elysia chlorotica may not look like much— it resembles a bright green leaf— but it's one of the most extraordinary creatures on our planet. Living in marshes along the coast of North America, it can go about...
SciShow
Can You Really Be Scared to Death?
Can you literally "die of fright?" Turns out, you can! In this episode of SciShow Hank explores the mechanisms in your body that activate when you get scared, and how they can sometimes get out of hand.
SciShow
No Ears, No Problem: Frogs Can Hear With Their Lungs
If you’ve ever looked at a frog’s head, you might have noticed that they don’t have external ears. So How do they hear?
MinuteEarth
Why Are There Dangerous Ingredients in Vaccines
Want to learn more about the topic in this week's video? Here are some key words/phrases to get your googling started: -adjuvant: substance added to a vaccine to enhance the body's immune response and increase the vaccine's efficacy...
SciShow
Why Is It So Hard to Remember Things Right Now?
If you feel like you’ve been more forgetful than normal recently, you’re definitely not alone. Your memory can have a lot to do with what's happening around you.
SciShow
The Mystery of the Biggest Genomes
3 billion base pairs is a pretty typical genome size for organisms like us, but there are a few plants and animals with genomes so huge they completely blow this number out of the water.
Bozeman Science
Cell Membranes
Paul Andersen explains how cells are selectively permeable with the help of their cell membrane. The main constituents of the cell membrane, including cholesterol, glycolipids, glycoproteins, phospholipids, and proteins are included. The...
Amoeba Sisters
Nervous System
Join the Amoeba Sisters on this introduction to the Nervous System! This video briefly describes the division of the central nervous system (including going over some general areas of the brain) and the peripheral nervous system before...