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2023-09-30   Video
The Genetics of Tusklessness in Elephants

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[SHANE CAMPBELL-STATON] Normally, more than 90% of female African elephants have tusks. But in places that have a history of poaching and trophy hunting, like in Gorongosa National Park...


2023-09-28   Video
An Archeological Dig in Michigan Turns Up Some Surprising Artifacts

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Brendan Nash: So this is the sub-plow sediment from unit 133, and anything in here will have will be undisturbed for about 13,000 years. Really looking for the smallest flakes. And then you've got to ...


2023-09-26   Video
Electron Transport Chain

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SPEAKER: The center of activity that brings your cells to life is found inside the dynamic mitochondria organelle. The inner mitochondrial membrane is coated with enzymes that catalyze th...


2023-09-24   Video
Why Are You Alive – Life, Energy & ATP

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At this very second, you are on a narrow ledge between life and death. You probably don't feel it, but there's an incredible amount of activity going on inside you, and this activity can ne...


2023-09-22   Video
Biology of SARS-CoV-2 - Detection

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SPEAKER: There are several ways to test whether someone has been infected with SARS COV-2. Some tests can detect if you have an active infection or an infection that is happening right ...


2023-09-20   Video
The Warrior Kingdoms of the Weaver Ant

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Deep in tropical jungles lie floating kingdoms, ruled by beautiful and deadly masters. They're sort of the high elves of the ant kingdoms; talented architects that create castles and city...


2023-09-18   Video
Biology of SARS-CoV-2 - Vaccination

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[NARRATOR:] When you are infected with a virus like SARS-CoV-2, your body gets to work destroying the virus. Your immune system recognizes certain viral proteins, called antigens. Antig...


2023-09-16   Video
What Do Alien Civilizations Look Like

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An observable universe is a big place that's been around for more than 13 billion years. Up to two trillion galaxies made up of something like 20,000 billion billion stars surround our home ga...


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