How Do Oysters Make Pearls?
YouthNatureScienceBiology Explore how oysters use calcium carbonate to create pearls, and how this chemical compound creates a vast array of other materials.
A Chameleons Race Against Time
YouthAnimalsFactsNatureScienceBiology... Discover how a Labord’s chameleon learns how to hunt for a meal and find a potential mate, all in a short lifespan of just four months.
Humans Versus The Common Cold
YouthFactsHealthScienceBiology... Dig into the two main ways we fight the viruses that cause the common cold, and find out if it’s possible to create a cure.
There’s No Such Thing As “Warm-” Or “Cold-” Blooded
AdultsBiologyHealthLifeScienceAnimals... The concept of warm-blooded and cold-blooded animals is outdated because there are actually tons of different animal thermoregulation strategies.
The Real Reason Leaves Change Color In the Fall
AdultsEducationLifeNatureScienceBiology... Want to learn more about the topic in this week’s video? Here are some keywords to get your googling started:
Leaf senescence, chlorophyll, carotenoid, anthocyanin
Photosynthesis
AdultsLifeNatureScienceBiology... Hank explains the extremely complex series of reactions whereby plants feed themselves on sunlight, carbon dioxide and water, and also create some by products we're pretty fond of as well.
Lungs Are Great, But They Have One Weakness...
AdultsBiologyHealthHumanEnvironment... Our respiratory systems do a great job of protecting us, but they are no match for the smallest pollution particles created by the modern world.
Paleontologist Answers Dinosaur Questions From Twitter
AdultsAnimalsEducationLifeScienceBiology... Paleontologist Dr. Hans Sues answers the internet's burning questions about dinosaurs. Why did T-Rex have such tiny arms?
Do Other Diseases Have "Long" Versions?
AdultsBiologyHealthScience This video was made in partnership with Bill Gates. COVID isn’t the only virus to cause long-lasting symptoms. Other viruses - including the flu - can have similar enduring effects on our tissues and immune systems.
Cool Facts About Bats
KidsAnimalsNatureBiology Find out cool and creepy facts about bats—from how and where they live, to what they eat and how they talk to each other.