PBS
Darwin Missed An Example of Evolution Right Under His Nose
Charles Darwin encountered a tiny fox-like creature during his famous voyage but instead of discovering its fascinating evolutionary story, he just knocked it on the head with his geology hammer.
Bozeman Science
Unit 2 Review - Speciation
Paul Andersen reviews the major concepts within the second unit of the new AP Biology framework. He starts by describing how life is organized into three domains. He explains how the history of life on the planet is characterized by mass...
SciShow
An Unexpected Tool to Track Ancient Civilizations...Bacteria
Scientists have used a bacteria that commonly infects us to track how ancient humans spread to the Americas from Siberia. And other scientists have discovered a new species of hyrax in the forests of Africa by listening to their barks...
MinuteEarth
How This River Made Chimps Violent
When a group of apes got split apart, slight differences in their new environments led to big differences in future generations.
MinuteEarth
The Freshwater Paradox
Even though less than 1% of Earth's water is freshwater, it's the home for 50% of fish species. This is the Freshwater Paradox.
SciShow
The Sex Lives of Early Humans
Hank talks about ancient sexy times, and how we know that early humans were getting it on with all kinds of folks.
Amoeba Sisters
Speciation
Explore speciation with The Amoeba Sisters. This video discusses sympatric and allopatric speciation and covers several types of isolation types including behavioral, temporal, and habitat isolations. Table of Contents: Intro 00:00...
Bozeman Science
Speciation and Extinction
Paul Andersen details the evolutionary processes of speciation and extinction. Stickleback evolution in Lake Loberg is used as example of rapid speciation. Adaptive radiation is illustrated using the Hawaiian honeycreeper. A brief...
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...
SciShow
How Apple Flies Changed the Way We Think of Evolution
How does one species evolve into two within the same habitat? Discover the details behind a rare type of evolution: sympatric evolution.
Bozeman Science
Phylogenetics
Paul Andersen discusses the specifics of phylogenetics. The evolutionary relationships of organisms are discovered through both morphological and molecular data. A specific type of phylogenetic tree, the cladogram, is also covered.
Bozeman Science
Ecosystem Diversity
In this video Paul Andersen explains how biodiversity can be measured through genetic, species, or ecosystem variety on the planet. Species diversity is increased through speciation and decrease through extinction. The mechanism for...
Curated Video
Origin of Species
How are new species created? An insight into the key evolutionary processes, played out over many generations, which lead to speciation. Biology - Adaptation And Evolution - Learning Points. We all originate from a single cell, so why...
Curated Video
What is Adaptation?
Adaptations are the ways in which organisms change over time in response to the changing demands of their environment. Through adaptation, organisms can develop certain physiological, behavioral, and structural traits gradually to better...
Curated Video
How Evolution Works
The theory of evolution by natural selection is the process through which organisms change over time as a result of changes in physical or behavioural traits. These changes will allow an organism to adapt better to its environment and...
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!
Nature League
One Fish, Two Fish, Red Fish, New Fish - De-Natured
In this De-Natured segment of Nature League, Brit breaks down a recent scientific journal article about the rates of speciation of marine fish around the world. Article citation: Rabosky, D.L., Chang, J., Title, P.O., Cowman, P.F.,...
Visual Learning Systems
Darwin's Finches and the Evidence for Evolution
This video introduces the concept of speciation and the role of Darwin's finches in understanding evolution. It explains how these birds, with their distinct species, provide evidence for the theory of natural selection and evolution....
Curated Video
Alfred Russel Wallace's Contribution to the Theory of Evolution
The video discusses the contribution of Alfred Russell Wallace to the theory of evolution. The video highlights Wallace's discoveries related to the use of color by some plants and animals, which he suggested evolved by natural selection...
Nature League
Preserving Montana's State Fish - Field Trip
In this Nature League Field Trip, Brit joins scientists in the Flathead River system to explore the consequences of genetic introgression between westslope cutthroat trout and rainbow trout.
Visual Learning Systems
Understanding Speciation and Adaptive Radiation
This video explains the concept of speciation and how it occurs through natural selection and adaptation. It highlights the importance of isolation in promoting speciation, using the example of the Galapagos Islands and their endemic...
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...
Nature League
Exploring Evolution and Speciation - Lesson Plan
In this Nature League Lesson Plan, Brit explains the mechanisms and nuances of evolution and speciation.