SciShow
When Two Species Mix
We often think of categories as fixed, with a species being a species no matter what. The thing is, life doesn’t have to follow our rules.
TED-Ed
TED-Ed: How does this all-female species reproduce? | Susan Freitas and Darren Parker
In 2021, workers at a Sardinian aquarium were stunned by the birth of a smooth-hound shark. What was shocking was that, for the last decade, the shark's mother had been living only with other females. So, how was this birth possible? And...
SciShow
A.I. Reveals Autism-Linked Changes in "Junk" DNA | SciShow News
Scientists know that genetic factors can explain many of autism’s features - but have autism researchers been looking for those features in the wrong DNA? A new study uses A.I. to uncover changes linked to autism in the stretches of non...
Bozeman Science
AP Biology Practice 7 - Connecting Knowledge
In this video Paul Andersen explains the final AP Biology practice on connecting knowledge. The video begins with an introduction to interdisciplinary studies and how science is changing over time. He describes differences of scale in...
TED-Ed
TED-Ed: Five fingers of evolution - Paul Andersen
How can a "thumbs up" sign help us remember five processes that impact evolution? The story of the Five Fingers of Evolution gives us a clever way of understanding change in gene pools over time.
SciShow
Tracking Plant Genetics Through Art
Just like animals, plants evolve and change over time. And you might think we'd be looking for things like fossils to figure out how they've changed, but some scientists are using a far less traditional resource: art.
SciShow
What the CRISPR Embryo Editing Study Really Taught Us
What did the recent study using the CRISPR gene editing technique actually entail, and what did we learn from it?
SciShow
Colorado's Bright Yellow River, and Why Fruit Flies Mate
This week on SciShow News, toxic waste from an abandoned mine turned a river yellow, and new research shows that threatened fruit flies may have more diverse offspring.
SciShow
Why Some DNA Is Selfish
Your DNA is a part of you, but it might not share your sense of who's numero uno.
TED-Ed
TED-Ed: Why are some people left-handed? - Daniel M. Abrams
Today, about one-tenth of the world's population are southpaws. Why are such a small proportion of people left-handed -- and why does the trait exist in the first place? Daniel M. Abrams investigates how the uneven ratio of lefties and...
SciShow
Seasonal Genes & The Science of Fear
This week on SciShow News, we explore how our genes change with the seasons! Plus, it turns out that even flies get scared sometimes.
SciShow
5 Times Evolution Should Have Planned Ahead
Natural selection can lead to some pretty amazing adaptations, but sometimes the resulting traits aren’t the most efficient solutions to the problems at hand. With the bar set to “good enough,” here are some features that arose from...
SciShow
The Human Neocortex Isn’t as Special as We Thought
For a long time, scientists considered the neocortex the brainiest part of the human brain – an obvious candidate for the thing that makes us unique. But in some ways, it’s not that different from other mammals’ brains. So researchers...
SciShow
Treating Blindness With Light (and Gene Therapy) | SciShow News
We have the first published example of using light and gene therapy to restore someone's vision! And in heavier (metal) news, a recent study found surprisingly high levels of mercury in meltwater from the Greenland Ice Sheet.
Bozeman Science
What is CRISPR?
In this video Paul Andersen explains how the CRISPR/Cas immune system was identified in bacteria and how the CRISPR/Cas9 system was developed to edit genomes.
SciShow
What Can You Actually Learn from Your Genome?
Genetic tests can give you advice about what lifestyle, diet, and level of exercise are best for you. But you should take those suggestions with a grain of salt, because, when it comes to our bodies, our genes aren’t so much an open...
SciShow
Anorexia Isn't Just a Psychiatric Disorder
Illness is complicated, and today we take a look at new research that points to two diseases, anorexia and dementia, that both may be more related to genetics and behavior than we previously thought.
Bozeman Science
Cellular Variation
Paul Andersen explains how variation is created within a cell. He starts by showing how molecular variation can increase fitness at the local level. He explains how an additional chlorophyll molecule allows plants to absorb more light...
SciShow
What’s in the 4% of our DNA that makes us different from chimps?
On the genetic level, we're not all that different from chimps. But those small differences in DNA can have huge effects.
SciShow
The 2017 Nobel Prizes: Biological Clocks and Microscopy
Last week, the recipients of the 2017 Nobel Prizes were announced. We take a closer look at the winners of the Physiology and Chemistry Awards, whose breakthroughs change the way we study sleep, and allow us to look at microscopic...
TED Talks
TED: On the verge of creating synthetic life | Craig Venter
Can we create new life out of our digital universe? Craig Venter asks. His answer is "yes" -- and pretty soon. He walks through his latest research and promises that we'll soon be able to build and boot up a synthetic chromosome. NOTE:...
SciShow
Parkinson’s Isn’t Inherited (Usually), but This Gene Matters
We don’t know what causes non-hereditary Parkinson's disease, but researchers have recently identified a gene that might help shed some light on those cases. And another paper suggests that the impact we're having on the frequency of...
SciShow
3 New Facts About Denisovans
Hank brings us some late-breaking news from the genus Homo - a team of scientists has sequenced the genome of the Denisova hominin, the latest member to be added to the human family tree.
SciShow
What Your Family History Can’t Tell You
The first time you visit a new doctor, they’ll probably ask you about your family history - but it turns out that family history doesn’t tell you everything about the risks that can be hidden in your genes.