SciShow
An Alternative to Dark Matter?
Models of the universe’s early days have only been possible with dark matter as a variable, but we still don’t have proof that dark matter exists. But recently, scientists may have found a way to replicate the results without the...
TED-Ed
TED-Ed: The genes you don't get from your parents (but can't live without) | Devin Shuman
Inside our cells, each of us has a second set of genes completely separate from our 23 pairs of chromosomes. And this isn't just true for humans— it's true of every animal, plant, and fungus on Earth. This second genome belongs to our...
SciShow
The Only Animal That Can't Breathe Oxygen
Oxygen is so essential for animals that every multicellular species we’ve ever studied has the ability to use oxygen to create energy... except one.
PBS
Pbs Learning Media: The Powerhouse of the Cell
This video segment describes the critical role that mitochondria play in nearly every cellular process in your body.