SciShow
Everyone Was Wrong About Avocados - Including Us
If you’re a fan of avocados, you might have heard that they only exist thanks to prehistoric creatures called giant ground sloths. In fact, you’ve probably heard that from us. But as it turns out, the real story is way more complicated -...
PBS
The Missing Link That Wasn’t
The myth of the Missing Link--the idea that there must be a specimen that partly resembles an ape but also partly resembles a modern human--is persistent. But the reality is that there is no missing link in our lineage, because that’s...
PBS
How Evolution Works (And How We Figured It Out)
As a scientific concept, evolution was revolutionary when it was first introduced. With the help of all three of our hosts and the Smithsonian National Museum of Natural History’s new Deep Time Hall, we’ll try to explain how evolution...
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.
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.
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.
Crash Course
Speciation: Of Ligers & Men - Crash Course Biology
Hank explains speciation - the evolutionary process by which new biological species arise - in terms of finches, ligers, mules, and dogs.
Bozeman Science
Speciation
Paul Andersen explains how reproductive isolation can eventually lead to speciation. Three main barriers to gene flow are included: geographic, pre-zygotic and post-zygotic. Both allopatric and sympatric speciation are discussed. A brief...
Bozeman Science
Population Modeling
Paul Andersen shows you how we can use a spreadsheet to model population changes. He begins with a brief discussion of populations and life cycles. He then shows you how you can model a single generation using a spreadsheet.
Crash Course
Population Genetics: When Darwin Met Mendel - Crash Course Biology
Hank talks about population genetics, which helps to explain the evolution of populations over time by combing the principles of Mendel and Darwin, and by means of the Hardy-Weinberg equation.
Nature League
Exploring Evolution and Speciation | Compilation
Brit looks back on our sixth month on Nature League, when we explored the theme of evolution and speciation. Get your Nature League pin here!
msvgo
Hardy-Weinberg Principle
It explains Hardy-Weinberg principle including concepts such as founder effect, bottle neck effect and Hardy-Weinberg Equilibrium.
Professor Dave Explains
Types of Speciation Allopatric, Sympatric, Peripatric, and Parapatric
Earlier in the series we learned about evolution by natural selection, and the production of new species, which we call speciation. But did you know there are different types of speciation? There are! That's because there are different...
Ancient Lights Media
Genetic Engineering: Positives & Negatives of Transgenic Plants
This clip looks at some of the beneficial and harmful aspects of transgenic plants.
Professor Dave Explains
The Evolution of Populations: Natural Selection, Genetic Drift, and Gene Flow
After going through Darwin's work, it's time to get up to speed on our current models of evolution. Much of what Darwin didn't know is now known and understood very well, so we can meticulously go through much of the evidence we see for...
Khan Academy
Khan Academy: Genetic Variation, Gene Flow, and New Species
Learn how genetic variation is the raw material of evolution, and learn how restricted gene flow can lead to the formation of new species. [11:52]
Khan Academy
Khan Academy: Evolution: Genetic Variation, Gene Flow, and New Species
How genetic variation is the raw material of evolution, and how restricted gene flow can lead to the formation of new species. [11:52]
Sophia Learning
Sophia: Transition Markers: Lesson 1
A slide show about transitional words, phrases, and other markers followed by a three-question quiz to check for understanding. It is 1 of 2 in the series titled "Transition Markers."
Bozeman Science
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.