The flu might feel like some minor illness that you don't need to worry about much, but tens of thousands of people still die from it every year. And back in 1918, Flu killed up to 5% of the world's population. Could a flu that bad...

Hank talks about population genetics, which helps to explain the evolution of populations over time by combing the principles of Mendel and Darwin, and by means of the Hardy-Weinberg equation.

High elevations can be a problem for humans. Since the air is thinner, you get less oxygen with every breath, leading to all kinds of negative side effects. But there are millions of people around the world who spend their whole lives at...

In this video Paul Andersen explains how variation is created in a population over time. Variation in offspring is caused by genetic recombination, mutations and environmental effects. Parental DNA is recombined using the process of...

Bones might seem rock-solid, but they’re actually quite porous inside. Most of the large bones of your skeleton have a hollow core filled with soft bone marrow. Marrow's most essential elements are blood stem cells and for patients with...

Paul Andersen describes the major mutations found in the living world. He starts with an analogy comparing the information in DNA with the information in a recipe. Changes in the DNA can result in changes to the protein, like changes...

When life emerged on Earth about 4 billion years ago, the earliest microbes had a set of basic genes that succeeded in keeping them alive. In the age of humans and other large organisms, there are a lot more genes to go around. Where did...

We've harnessed electricity, sequenced the human genome, and eradicated smallpox. But after billions of dollars in research, we haven't found a solution for a disease that affects more than 14 million people and their families at any...

Ever wonder why we still haven't cured cancer? Join SciShow as we discuss what's wrong with that question and why it's so hard to find a cure.

There are genetic mutations in the population today that can grant people some seemingly superhuman abilities.

In this video Paul Andersen answers the very simple question: What is cancer? He explains how damage to the DNA can create uncontrolled cell growth. He explains how malignant tumors can spread the disease throughout the body and gives...

Caecilians are legless amphibians. Some of them are immune to cobra venom and in a certain sense, some of them eat their mothers from the inside-out and some eat them from the outside-in.

This video describes various ways that species change over time such as variation, binary fission, adaption, mutation, envirvonmental changes, and extinction.

The video contains tricks to easily remember point mutations

This video provides a brief and engaging overview of DNA and its significance in biology. It explains how DNA is the genetic material that determines the unique characteristics of living organisms, how it is passed down through...

This video is answering the question of what is DNA mutation.

Evolution is the net change in organisms or a population over the span of many generations. This change in organisms or populations happens through DNA mutations and reconbination and is passed down to the next generation through...

A mutation is a random change in the DNA. Mutations can be neutral, which means it does not cause a change in a trait of the organism, or it could cause a beneficial or a harmful mutation. There are a few different types of mutations -...

The heart is practically immune to getting cancer. 2 in 100,000 of those who have cancer are those with a primary cancer of the heart. That is an astonishing low number. So, what is so special about the heart that it rarely, if ever,...

A change in a DNA sequence.
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Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...

Genetic variation produces new characteristics and, over generations, drives the evolution of species. But how do new gene types arise and what are the processes behind evolution? Biology - Adaptation And Evolution - Learning Points....

Learn why radium is so radioactive it can both cause and cure cancer. Chemistry - Periodic Table - Learning Points. Marie and Pierre Curie discovered radium in 1898. Radium is a product of the radioactive decay of uranium. Exposure to...

What is natural selection and how does it work?
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Learning Points
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Find out how earwigs, elephants, poppies and flamingos are all related!
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Learning Points
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