Amoeba Sisters
Protein Structure and Folding
After a polypeptide is produced in protein synthesis, it's not necessarily a functional protein yet! Explore protein folding that occurs within levels of protein structure with the Amoeba Sisters! Primary, secondary, tertiary, and...
SciShow
A Brief History of Life on Earth: The Full Series
From the Archean Eon to the Holocene Epoch, check out this SciShow mini-series for a primer about life on earth.
SciShow
A Brief History of Life: Rise of the Humans
With the non-avian dinosaurs extinct, it was time for mammals to take over. Finally, in the tiniest sliver of the history of life, humans emerge.
Wonderscape
The Cenozoic Era: Dawn of Mammals and Modern Landscapes
Explore the Cenozoic era, known as the Age of Mammals, which showcases the dramatic rise and diversification of mammalian life following the dinosaurs' extinction. This era, spanning from 65 million years ago to the present, has seen...
Next Animation Studio
Fossilized tracks show woman and child’s dangerous journey
An amazing trove of fossilized footprints in New Mexico tells the harrowing story of a woman and a 2-year-old child’s dangerous journey around 13,000 years ago.
Professor Dave Explains
Practice Problems: Labeling Carbons
What's with this hierarchy? Primary, secondary, tertiary... can't all carbons be equal? Well, no. We need to be able to label the degree of substitution of any carbon in an organic molecule so that we can make predictions about the...