TED-Ed
What Is the Biggest Single-Celled Organism?
Meet Caulerpa taxifolia, believed to be the largest single-celled organism in the world. How does it work and where is it found? Learn all about this invasive algae and why it is so successful.
TED-Ed
How Plants Tell Time
Can someone really have a "biological clock"? Discover why many organisms on earth have an inherent awareness of where they are in the day's cycle.This video discusses animal adaptations, the earth's revolutions, and how light and...
TED-Ed
Self-Assembly: The Power of Organizing the Unorganized
What if buildings could grow, adapt, and repair themselves like a living organism? Using the process of self-assembly, this crazy idea may one day become a reality. The video looks at how unordered parts interact with one another and...
Howard Hughes Medical Institute
Chargaff's Ratio
How do we know the structure of DNA? Learn about Chargaff's rule and how scientists first discovered the structure of DNA. Using an informative video, young scientists identify how the arrangement of complementary nitrogen bases affects...
Howard Hughes Medical Institute
Prialt Blocks Motor Synapse in Fish
Have you ever wondered how to paralyze a fish? The cone snail produces venom that works, but what happens at a molecular level? A calcium channel blocker prevents muscle movement, enabling the slow-moving snail to catch faster, larger...