SciShow
Where Are All the Dead Animals
We are surrounded by wildlife, like pigeons and squirrels, all the time. Sadly, all those animals eventually die, but why don't we see carcasses on the street? Where do they go?
SciShow
3 Things You May Not Want to Know About Dust Mites
Fair warning: After learning about dust mites, you may never want to sleep in your bed again.
SciShow
SciShow Quiz Show: SciShow vs VidCon
With VidCon Australia just around the corner, Julia Maes, Executive Producer of VidCon International, faces off against Hank Green on the SciShow Quiz Show, answering questions about Australian things and earning prizes for Patreon patrons!
TED Talks
Kamal Meattle: How to grow fresh air
Researcher Kamal Meattle shows how an arrangement of three common houseplants, used in specific spots in a home or office building, can result in measurably cleaner indoor air.
Amoeba Sisters
Biological Levels in Biology: The World Tour
The Amoeba Sisters tour through the biological levels of organization: cells, tissues, organs, organ systems, organism, population, community, ecosystem, biome, biosphere! Table of Contents: 00:00 Intro 0:44 Cells 1:42 Tissues 1:51...
SciShow
7 Animals That Evolved at Hyperspeed — Because of Us
Evolution is known to be a long, slow process. But thanks to our interference, some animals have adapted at light speed in order to survive. Chapters 1 CLIFF SWALLOWS 2:45 SPORT FISH 3:04 MOSQUITOES 4:28 TURTLE-HEADED SEA SNAKES 6:09...
SciShow
How Measles Made a Comeback
SciShow News explores how a diseases that was officially eliminated in the U.S. has made a sudden comeback.
TED Talks
TED: The rapid growth of the Chinese internet -- and where it's headed | Gary Liu
The Chinese internet has grown at a staggering pace -- it now has more users than the combined populations of the US, UK, Russia, Germany, France and Canada. Even with its imperfections, the lives of once-forgotten populations have been...
Bozeman Science
The Hierarchy of Life
Paul Andersen explains how biology is ordered in the hierarchy of life. He first of all describes how emergent properties appear as you move to more inclusive systems. The then describes life at the following levels; atom, molecule,...
SciShow
We Still Can't Find the First Stars in the Universe | SciShow News
Astronomers looking farther back in time than ever before are giving us a better idea of what the early universe must have been like, and we've identified another of the mysterious ultraluminous X-ray pulsars.
TED Talks
TED: Global population growth, box by box | Hans Rosling
The world's population will grow to 9 billion over the next 50 years -- and only by raising the living standards of the poorest can we check population growth. This is the paradoxical answer that Hans Rosling unveils at TED@Cannes using...
SciShow
6 Ways Species Rely on Humans for Survival
Sometimes, a species has declined so dramatically that they require serious human intervention to ensure they don’t disappear forever. Here are six ways we’re using conservation and science to keep those species alive....
Chapters
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TED Talks
TED: Gene editing can now change an entire species -- forever | Jennifer Kahn
CRISPR gene drives allow scientists to change sequences of DNA and guarantee that the resulting edited genetic trait is inherited by future generations, opening up the possibility of altering entire species forever. More than anything,...
Crash Course
Migrations and Intensification Crash Course Big History 7
In which Hank and John Green teach you about humanity conquering the Earth. Or at least moving from Africa into the rest of the Earth. As human beings spread out across the world and populations grew, humanity reached a critical mass of...
TED Talks
TED: 4 ways we can avoid a catastrophic drought | David Sedlak
As the world's climate patterns continue to shift unpredictably, places where drinking water was once abundant may soon find reservoirs dry and groundwater aquifers depleted. In this talk, civil and environmental engineer David Sedlak...
Crash Course
Early Computing: Crash Course Computer Science
Hello, world! Welcome to Crash Course Computer Science! So today, we’re going to take a look at computing’s origins, because even though our digital computers are relatively new, the need for computation is not. Since the start of...
TED-Ed
TED-Ed: The last living members of an extinct species | Jan Stejskal
In the savannahs of Kenya, two female northern white rhinos, Nájin and Fatu, munch contentedly on grass. They are the last two known northern white rhinos left on Earth. Their species is functionally extinct— without a male, they can't...
Bozeman Science
Logistic Growth
Paul Andersen explains how populations eventually reach a carrying capacity in logistic growth. He begins with a brief discussion of population size ( N ), growth rate ( r ) and exponential growth. He then explains how density dependent...
MinuteEarth
These Names Can Kill Animals
Just like the names of products and companies, animals' names can affect how we feel about them...and changing the name of a species might actually help us save it. ___________________________________________ Credits (and Twitter...
TED Talks
TED: A new understanding of human history and the roots of inequality | David Wengrow
What if the commonly accepted narratives about the foundation of civilization are all wrong? Drawing on groundbreaking research, archaeologist David Wengrow challenges traditional thinking about the social evolution of humanity -- from...
TED Talks
TED: The world in 2200 | Pete Alcorn
In this short, optimistic talk from TED2009, Pete Alcorn shares a vision of the world of two centuries from now -- when declining populations and growing opportunity prove Malthus was wrong.
Bozeman Science
Microevolution
Paul Andersen defines microevolution as any change in the frequency of the allele pool. He then explains the five mechanisms of evolution; small sample size, non-random mating, mutations, gene flow and natural selection.
TED-Ed
TED-Ed: How one of the most profitable companies in history rose to power | Adam Clulow
During the 17th century, the Dutch East India Company cornered the booming spice market and pioneered trade routes between Asia and Europe. It is widely considered the most profitable corporation ever created. But such success came with...
TED-Ed
TED-ED: History through the eyes of the potato - Leo Bear-McGuinness
Baked or fried, boiled or roasted, as chips or fries; at some point in your life you've probably eaten a potato. But potatoes have played a much more significant role in our history than just that of the dietary staple we have come to...