Howard Hughes Medical Institute
Shotgun Sequencing
Finally, something that is better when it's broken! Computers make sequencing short pieces of genome an easy task, yet they struggle with long sequences. Learn about one method for sequencing genomes by breaking it into smaller pieces...
Crash Course
Darwin and Natural Selection: Crash Course History of Science #22
Charles Darwin studied many species, but he also hindered their continued study by eating his specimens. Like many sailors, he enjoyed the taste of the Galapagos tortoise so much for many years that no ship made it all the way back to...
Howard Hughes Medical Institute
Pocket Mouse Evolution
G.H. Hardy and Wilhelm Weinberg created a mathematical formula to predict genotype frequencies. Observe a simulation of the Hardy-Weinberg equation using pocket mice. Scholars consider the selection coefficient, selective advantage, and...
Howard Hughes Medical Institute
How a Heart Attack Occurs
Heart disease causes more deaths in both men and women in the United States than any other factor, buy many people don't fully understand what causes a heart attack. A brief animation demonstrates the slow buildup of plaque, a blockage...
Howard Hughes Medical Institute
Body Mass Index (BMI)
Know your number! Diabetes and heart disease both increase with higher body mass index numbers. Understanding the body mass index (BMI) helps scholars take control of their own health. They view a comparison of what various BMI...
Howard Hughes Medical Institute
Translation (Basic Detail)
RNA translates three letters at a time to create a perfect protein chain. With the help of an animation, viewers discover the process of translation in real time. From ribosome to protein, the program creating living things finds...
Howard Hughes Medical Institute
Sanger Method of DNA Sequencing
Fred Sanger created the first method of sequencing DNA in 1977 using chemical alterations. Learn more about the Sanger method with a brief animation demonstrating the replication, ordering, and piecing together steps in the process.
Crash Course
The Replication Crisis: Crash Course Statistics #31
There is growing evidence that suggests the results of many studies are not reproducible. The 31st lesson of the Crash Course Statistics playlist discusses possible causes of the problem and identifies solutions since producibility is...
PBS
When We First Walked
Out of all mammals, only humans walk on two feet. Discuss the current scientific understanding of when this specific adaptation began. A video shares facts about many different species and theories about why the shift occurred. New...
PBS
Life, Sex, and Death Among the Dire Wolves
Scientists know a great deal about extinct dire wolves thanks to a large number fossilized in one geographical area. They lived in groups, hunted opportunistic or wounded prey, and were fierce in battle and sex. Learn more with an...
Corbett Maths
Simultaneous equations (Linear and Quadratic)
Now that budding mathematicians have figured out linear systems, its time to try nonlinear! A video tutorial outlines the steps of solving a linear-quadratic system of equations. The instructor demonstrates each step of the process using...
Crash Course
ANOVA Part 2: Dealing with Intersectional Groups: Crash Course Statistics #34
A statistic of interest is often affected by multiple variables. Continuing from the previous lesson in the Crash Course Statistics playlist, the instructor explains how to apply the ANOVA calculations to multiple variables that have an...
Crash Course
ANOVA: Crash Course Statistics #33
How do you account for multiple variables when analyzing data? Following a lesson on regression, the 33rd lesson in the Crash Course Statistics series examines the ANOVA, analysis of variances, method of determining differences...
Crash Course
Regression: Crash Course Statistics #32
Regression models help make sense of statistical data and assist people in making predictions describing the world around us. A thorough video lesson discusses linear regression models and concepts related to the models, such as...
TED-Ed
Could the Earth Be Swallowed By a Black Hole?
A black hole exists only a couple of thousand light years away from Earth. Should we be scared, or does that mean we are safe? Learn about the perspective of black holes and their relationship with Earth and the larger universe. After...
TED-Ed
What Would Happen If Every Human Suddenly Disappeared?
Humans constantly change the earth by building things, using natural resources, and relocating plants and animals. The lesson considers would happen to the planet if humans were gone. The narrator discusses the changes in buildings and...
PBS
When Fish Wore Armor
Today very few animals exist with both an endoskeleton and exoskeleton. Yet, in the Devonian period, a large number of fish species lived with both. Scientists debate if they were for protection or mineral storage, because none of them...
Nature League
Is That Ostrich Flirting With Me? - From A to B
What prompts an ostrich to perform its courtship dance ... for humans? The fourth and final installment in a Reproduction video series examines the importance of animal courtship behaviors, as well as the research that revolves around...
Nature League
Sex Safari - Field Trip
A field trip to study reproductive behavior of big game is a great set up for big-time learning! Part two of a four-part Reproduction video series takes viewers up close and personal with the animal residents of a wildlife preserve in...
Nature League
What is Reproduction? - Lesson Plan
What force drives a species' will to survive and thrive? Explore reproduction through the first of a four-part video series. The narrator discusses both sexual and asexual reproduction and cites examples of each.
Nature League
Why Are Millipedes Cuter Than Centipedes? - From A to B
In an invertebrate beauty pageant, why do millipedes always scuttle away with the crown? Part four of a five-part series of Invertebrate videos compares and contrasts the millipede with the centipede in terms of diet, behavior, and body...
Nature League
Invertebrates and Ocean Mixing - De-Natured
It's time to mix things up! Introduce biology scholars to the latest topic in marine research—invertebrates! The third installment in a five-part series of Invertebrates lessons explains the hypothesis that tiny, migrating shrimp are...
Nature League
Searching for Mysis Shrimp - Field Trip
Surely, the biggest fish in the lake will benefit from a meal of big, tasty shrimp! Take biology scholars on a trip to Flathead Lake in the second of a five-part Invertebrates series. Scientists currently studying the lake take the...
PBS
Killer Landslides | Monitoring and Predicting Landslides
Landslides kill between 25 and 50 people every year in the United States alone. This is why predicting a landslide literally saves lives. A scientist applied new technology to a mountain and accurately predicted a landslide. Thanks to...