PBS
How Two Microbes Changed History
Where would we be without bacteria? As it turns out, we owe them everything! Introduce young biologists to endosymbiotic theory using an amazing video from an extensive biology playlist. Scholars discover the bacteria that may be...
Deep Look
Banana Slugs: Secret of the Slime
Banana slugs eat animal droppings and leaves, all while generating waste that acts as a fertilizer. The video explains the slug's role in the ecosystem. It highlights the benefits of the slime for slugs' movement, food source, and even...
Deep Look
The Amazing Life of Sand
If you look close enough, sand can tell you a story. A video lesson describes the creation of sand over time. Scholars explore how different types of sand have come to be and the different materials found in a sample of sand.