SciShow
Why Do I Have to Brush My Teeth?
There are a few reasons that modern humans have to brush our teeth to stay healthy, even though our primate cousins don’t. Grab your floss and find the answers inside!
SciShow
COVID Variant Recombination: Threat or Achilles Heel?
Scientists may have found a recombinant variant of COVID-19 in the wild, and its mixed DNA could be essential to the coronavirus life cycle.
SciShow
8 More Terrible Names for Living Things
Sometimes, the common names we use for things are really confusing! Here are 8 living things with terrible names!
TED-Ed
These squids can fly... no, really | Robert Siddall
In 1947, explorers noticed a strange phenomenon while crossing the Pacific Ocean. Somehow, small squid known to live deep beneath the waves kept appearing on the roof of their boat. The crew was mystified— until they saw the squids...
TED-Ed
TED-Ed: How does alcohol cause hangovers? | Judy Grisel
The molecule responsible for hangovers is ethanol, which we colloquially refer to as alcohol. Ethanol is present in all alcoholic beverages, and generally speaking, the more ethanol, the greater the potential for a hangover. So, how...
Be Smart
Do Animals Mourn Their Dead?
Joe brings in a few friends to look at death in the animal kingdom.
TED Talks
Rob Knight: How our microbes make us who we are
Rob Knight is a pioneer in studying human microbes, the community of tiny single-cell organisms living inside our bodies that have a huge — and largely unexplored — role in our health. “The three pounds of microbes that you carry around...
SciShow
How Tattoos Really Work... At Least in Mice
People have been getting tattoos for thousands of years, but we've never quite been sure why the ink sticks around under our skin. A group of researchers now think they might have the answer. Plus, scientists are on the road to making...
SciShow
6 Non-Mammal "Milk" Producers
When you think of milk, you might think of mammals like humans and cows, but there are other species that give food to their young, in their own weird ways. Chapters FLAMINGOS 0:56 SPIDERS 1:55 PSEUDOSCORPIONS 3:23 CAECILIANS 5:13...
SciShow
Baboons With 2 Hearts & Pigs With Human DNA
Hank reveals two breakthroughs in the burgeoning science of xenotransplantation, the transplant of tissues across species. By the end of it, you'll want to hug your nearest pig!
SciShow
5 Tiny Bots Inspired by Nature
The creation of tiny robots could enable the exploration of new frontiers, from the tightest spaces in the human body to the most remote ecosystems. Here are 5 little bots that draw inspiration from nature to get the job done.
PBS
What Colors Were Dinosaurs?
We know a lot about dinosaurs but there's one question that has plagued paleontologists for decades: what color were they?
TED Talks
Daniel Wolpert: The real reason for brains
Neuroscientist Daniel Wolpert starts from a surprising premise: the brain evolved, not to think or feel, but to control movement. In this entertaining, data-rich talk he gives us a glimpse into how the brain creates the grace and agility...
TED Talks
Jessica Green: We're covered in germs. Let's design for that.
Our bodies and homes are covered in microbes -- some good for us, some bad for us. As we learn more about the germs and microbes who share our living spaces, TED Fellow Jessica Green asks: Can we design buildings that encourage happy,...
TED Talks
TED: How to win at evolution and survive a mass extinction | Lauren Sallan
Congratulations! By being here, alive, you are one of history's winners -- the culmination of a success story four billion years in the making. The other 99 percent of species who have ever lived on earth are dead -- killed by fire,...
SciShow
This Worm's Gut Has No Way In or Out
There are plenty of creatures out there with only one opening to handle both taking in food and getting rid of waste. But there’s at least one animal out there that doesn’t have a gut opening… at all. How does that even work?!
SciShow
Buddha's Birthplace, Poop Transplants & 'Cryptic Cats'
Michael Aranda relays the latest in science news, including an archaeological discovery about the earliest days of Buddhism, a new species of Brazilian wildcat, and new insights into the effects of fecal transplants.
TED Talks
Joy Wolfram: How nanoparticles could change the way we treat cancer
Ninety-nine percent of cancer drugs never make it to tumors, getting washed out of the body before they have time to do their job. How can we better deliver life-saving drugs? Cancer researcher Joy Wolfram shares cutting-edge medical...
TED-Ed
TED-Ed: How we can detect pretty much anything | Hélène Morlon and Anna Papadopoulou
Scientists have been staking out a forest in Montana for an animal that's notoriously tricky to find. Camera traps haven't offered definitive evidence, and experts can't identify its tracks with certainty. But within the past decades,...
TED Talks
Barbara J. King: Grief and love in the animal kingdom
From mourning orcas to distressed elephants, biological anthropologist Barbara J. King has witnessed grief and love across the animal kingdom. In this eye-opening talk, she explains the evidence behind her belief that many animals...
SciShow
How the Ocean Floor Got Filled with Riches
Deep below the surface, the ocean floor is full of riches. There’s gold, iron, and lots of other rare, precious metals. What kind of geochemical processes can leave loot all over the seafloor?
TED Talks
Noel Bairey Merz: The single biggest health threat women face
Surprising, but true: More women now die of heart disease than men, yet cardiovascular research has long focused on men. Pioneering doctor C. Noel Bairey Merz shares what we know and don't know about women's heart health -- including the...
TED Talks
TED: A simple new blood test that can catch cancer early | Jimmy Lin
Jimmy Lin is developing technologies to catch cancer months to years before current methods. He shares a breakthrough technique that looks for small signals of cancer's presence via a simple blood test, detecting the recurrence of some...
Bozeman Science
Aposematic Coloration
Paul Andersen explains how aposematic coloration (or warning coloration) is used for protection in the natural world. He explains how bright colors can be caused by either sexual selection or a warning coloration to predators. He also...