SciShow
The 3 Species That Break Genetics
Scientists have discovered a group of three closely related flowers that seem to break the laws of genetics. These mountain beardtongues are pollinated by either bees or butterflies, but not both, and that's the key to an incredibly...
SciShow
Autoimmune Diseases Are Sexist. Here’s Why
Autoimmune diseases like lupus disproportionately affect women five to one. Researchers have finally pinpointed a unique silencing gene on the X chromosome that may help explain why. Women Get More AutoImmune Diseases. Here’s Why.
PBS
There’s Something Weird About Neandertal DNA And It Might Be Our Fault
Maybe it’s a little self-centered that we can be pretty focused on the DNA that we got from Neanderthals – but we shouldn’t forget that gene flow goes both ways.
Be Smart
Why Are There As Many Males As Females?
In almost every animal species on Earth, equal numbers of males and females are conceived. Why is that? Especially in populations like lions or elephant seals, where most males don’t get to mate? That’s survival of the laziest, not...
SciShow
Will Climate Change Turn More Reptiles Female?
We hear all the time about the ways that climate change could disrupt the world. But thanks to a quirk of reptile biology called temperature-based sex determination, it could also mean a surge in the numbers of female reptiles.
SciShow
Half of All Plants Are Invisible
If you see an acorn sprout under an oak tree, you're seeing that tree's grandchild. Here's why half of all higher plants are invisible, and why it works for them.
Amoeba Sisters
Punnett Squares and Sex-Linked Traits (UPDATED)
Explore how to solve Punnett squares that involve sex-linked traits, specifically focusing on X-linked traits. Video has a resource available here https://www.amoebasisters.com/handouts This 2023 UPDATED sex-linked traits Amoeba Sisters...
SciShow
This Sturgeon-Paddlefish Hybrid Shouldn't Exist | SciShow News
Chromosome shenanigans have resulted in some unexpected hybrid fishes. Also, this record-breaking mouse lives at a ridiculous altitude.
SciShow
The Science of Men
Learn about the history of dudes, and a new theory about deep voices in this new episode of SciShow News. You know, science... bro... stuff. Hosted by: Hank Green
SciShow
The Mystery of the Biggest Genomes
3 billion base pairs is a pretty typical genome size for organisms like us, but there are a few plants and animals with genomes so huge they completely blow this number out of the water. Hosted by: Olivia Gordon
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
5 Things We Still Get Wrong About Human Reproduction
You'd think we'd know everything there is to know about sexual reproduction. But as it turns out, there are still quite a few things we picked up that aren't exactly true, and we're here to correct that.
SciShow
We're One Step Closer to Understanding Aging
Scientists have had a variety of hypotheses about how chemical stress can affect DNA to cause aging, but a new study has just shown the process in action. Hosted by: Hank Green
SciShow
Mendel Got Extremely Lucky (...or Maybe He Lied)
Science, while often the result of a stroke of genius, can just as easily be a stroke of extraordinarily good luck. Mendel’s work just happened to be a mix of the two.
SciShow
How Goldfish Went From Pretty To Invincible And Back Again
We began keeping goldfish as pets more than 1,000 years ago, but their beauty wasn’t the only thing they had going for them. Goldfish had a lot of really weird biological traits that made them incredibly resilient. And in an unfortunate...
SciShow
Killing Mosquitoes With a Flip of a Gene
Eliminating certain species of mosquitoes could make summertime more enjoyable and cut down on the transmission of certain diseases. And scientists are looking into doing this by manipulating a single gene!
SciShow
Is the Y Chromosome Disappearing?
Scientists know that the Y chromosome has been shrinking in size over millions of years, but recent studies suggest that it has more important genes, besides the ones that cause biological maleness. Hosted by: Michael Aranda
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. Hosted by: Hank Green
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
Is the Y Chromosome Disappearing?
Scientists know that the Y chromosome has been shrinking in size over millions of years, but recent studies suggest that it has more important genes, besides the ones that cause biological maleness.
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.
SciShow
How Researchers Made Mice Pups from Two Moms and Two Dads | SciShow News
This week in news: Scientist successfully breed mice using same-sex parents and some very clever genetic engineering.