Crash Course
Evolutionary Development: Chicken Teeth - Crash Course Biology
Hank introduces us to the relatively new field of evolutionary developmental biology, which compares the developmental processes of different organisms to determine their ancestral relationship, and to discover how those processes...
SciShow
Chimera Cats and Your Mom
Hank talks about chimeras, and why Venus the cat probably isn't one - but your mom might be
SciShow
SciShow Quiz Show: With WheezyWaiter!
Welcome back to SciShow Quiz Show, where Hank goes head-to-head with Craig Benzine, better known as WheezyWaiter.
SciShow
Active Volcanoes: The Perfect Egg Incubators
You probably don't think of active volcanoes as the ideal place to build a nursery, but for some animals, they're the perfect spot to incubate their unborn babies!
SciShow
Bioprinting and Pig Chimeras: The Possible Future of Organ Transplants
From bioprinting to growing organs in non-human animals, doctors and scientists are looking at different ways to make organ transplants a less challenging procedure.
SciShow
What Fruit Flies Taught Us About Human Biology
For creatures that look nothing like us, fruit flies have been able to teach us a lot about human biology as we’ve studied them over the past century.
SciShow
SciShow Talk Show: Jack Horner Meets a Dinosaur
Jack Horner and Hank talk about the evolution of dinosaurs, what it took to become a world-famous paleontologist, genetics, and meet a live dinosaur courtesy of Jessi Knudsen Castañeda.
SciShow
Why Did the Rooster Lose Its Penis?
Why did so many birds ditch penises? Maybe it was natural or sexual selection, an accident, or in exchange for something way more useful to them. Whatever the reason, penis loss goes to show that internal fertilization doesn’t require a...
SciShow
The Science Behind 'Genetically Modified Humans'
The media have been talking about “genetically modified humans” and “designer babies.” But what they’re really talking about is germ-line engineering: a process that could help eliminate heritable diseases. So why do some scientists want...
SciShow
The Viruses That Shaped Humanity
You might get the impression that all viruses are terrible, awful, no-good things that just wreak havoc on humanity. But, surprise: The truth is way more interesting!
SciShow
Some Mammals Can Just… Pause Pregnancy
We generally think of pregnancy as a continuous process, but scientists have recently discovered mechanisms that allow for certain mammals to put the development of a fetus on pause.
SciShow
Am I 1% Nacho?
If you weighed 99 lbs, and ate 1 lbs of nachos, would that make you 1% nacho? Hank attempts to answer this question with a series of deeper questions on this episode of SciShow quick questions.
SciShow
Elizabeth Blackburn: Great Minds
Hank brings us the story of Elizabeth Blackburn, the Nobel Prize-winning Australian woman who discovered telomeres and telomerase, and helped scientists begin to understand the process of aging at a genetic level.
SciShow
Beyond Identical or Fraternal: 6 Rare Types of Twins
Twins can be a lot more complicated than just identical or fraternal, and the rarer types of twins suggest that we have a lot more to learn about human development.
SciShow
How Do Brine Shrimp Survive In Packaging For Years?
Nearly everyone has some experience with the illustriously branded brine shrimp, but there’s a whole lot more to the creatures’ resilience than what it says on the box.
SciShow
3 Sad Surprises: The Human Genome Project
Hank tells us three surprises about human DNA which we learned because of the Human Genome Project.
SciShow
How Do Pandas Exist?
Adorable, sure, but how are you alive?? Giant pandas present a conservation challenge like no other. Find out how the bears eke out an existence in the wild, and why they're proving so hard to save.
SciShow
Can You Keep Donating and Regrowing Your Liver?
Fun Fact: people can donate over half of their liver, and the tissue will grow back within a year! Knowing that, it seems pretty logical to assume that we could just keep donating and regrowing our livers over and over again, but is that...
SciShow
Why Genetic Engineering Can’t Do Everything (Yet)
We've made some great strides in understanding the human genome, but before we can tackle genetic engineering, we have some "chicken and egg" problems to figure out.
Bozeman Science
Development: Timing and Coordination
Paul Andersen explains how genes control the timing and coordination of embryo development. Seed germination initiates the discussion of cell differentiation. The SRY gene and genetic transplantation shows the importance of embryonic...
TED Talks
TED: What happens to people's donated eggs and sperm after they die? | Ellen Trachman
Today, there are many ways to conceive a child, thanks to assisted reproductive technologies like IVF and egg-freezing. But the law lags behind these advancements, says attorney Ellen Trachman, troubling parents-to-be with...
TED-Ed
TED-Ed: Why are human bodies asymmetrical? - Leo Q. Wan
Symmetry is everywhere in nature. And we usually associate it with beauty: a perfectly shaped leaf or a butterfly with intricate patterns mirrored on each wing. But it turns out that asymmetry is pretty important, too - and more common...
SciShow
Cyclopia: A Rare Birth Defect That Could Help Cure Cancer
With a greater understanding of biological mechanisms, humans may be able to take a devastating birth defect and turn it into a treatment for cancer.
TED-Ed
TED-ED: Secrets of the X chromosome - Robin Ball
The sequence of DNA that we inherit from our parents encodes directions for making our cells and giving us specific traits. Identical twins have the same DNA sequence, so how can one twin end up with a genetic disorder while the other...