PBS
How the Walrus Got Its Tusks
The rise and fall of ancient walruses, and how modern ones got their tusks, is a story that spans almost 20 million years. And while there are parts of the story that we’re still trying to figure out, it looks like tusks didn’t have...
SciShow
Why Sexy Is Sexy
Hank delves into the scientific reasons behind why we are attracted to the people we're attracted to. It's complicated.
SciShow
7 Species With Big Sex Issues
You've heard of the battle of the sexes—but these 7 animal species take it pretty seriously. Join Michael Aranda for a new episode of SciShow and learn about these animals with pretty big sex-related disputes.
Bozeman Science
Behavior and Natural Selection
Paul Andersen explains how the behavior of various organisms is shaped by natural selection. The action of phototropism and the timing of photoperiodism have both been shaped by the relative availability of light. Courtship in the bower...
SciShow
Why Sexy Is Sexy
Hank delves into the scientific reasons behind why we are attracted to the people we're attracted to. It's complicated.
Bozeman Science
Evolution Continues
Paul Andersen explains how life has evolved and continues to evolve today. A brief discussion of artificial, natural and sexual selection is included. The beak of the finch is used to explain how directional selection is achieved.
SciShow
Why Did the Rooster Lose Its Penis?
Why did so many birds ditch penises? Maybe it was natural or sexual selection, an accident, or in exchange for something way more useful to them. Whatever the reason, penis loss goes to show that internal fertilization doesn’t require a...
MinuteEarth
Bitcoin mining is a lot like reindeer mating 🪙💖🦌
Bitcoin and other blockchain technologies, like NFTs, work a lot like reindeer mating.
TED Talks
TED: The loves and lies of fireflies | Sara Lewis
Biologist Sara Lewis has spent the past 20 years getting to the bottom of the magic and wonder of fireflies. In this charming talk, she tells us how and why the beetles produce their silent sparks, what happens when two fireflies have...
SciShow
For These 7 Species, Sex Changes Everything
Animals and plants come in an amazing variety of shapes, sizes and colors. And in some species, they take it pretty extreme to deal with the battles within and between sexes.
Crash Course
Animal Behavior - CrashCourse Biology
Hank and his cat Cameo help teach us about animal behavior and how we can discover why animals do the things they do.
Bozeman Science
Selection
Paul Andersen explains the importance of selection in biology. Artificial selection occurs when humans choose traits that will be selected for or against. This has created the variety of domesticated animals and crops. He then describes...
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.
SciShow
Making Plants High-Tech With Artificial Neurons | SciShow News
Biology and technology grew closer together when scientists manufactured neurons that acted like those in a brain! And birds evolved to protect themselves in two ways: fight and flight.
Crash Course
Natural Selection - Crash Course Biology
Hank guides us through the process of natural selection, the key mechanism of evolution.
Curated Video
Sexual Selection
Learn how sexual selection governs mate choice, but also drives the evolution of species. Examples of physical and behavioural, intra and inter species sexual selection. Biology - Adaptation And Evolution - Learning Points. Selecting a...
Curated Video
Dinosaur Frills and Sexual Selection
Why did dinosaurs such as Triceratops have massive shields (frills) on their heads? Dr. David Hone argues that it was not for defence! It probably served as a socio-sexual display. Given that behaviours don’t fossilise, is it possible to...
Nature League
Exploring Sex and Reproduction | Compilation
Brit looks back on our fourth month on Nature League, when we explored the theme of sex and reproduction.
Science360
America's Scientist Idol game show
The battle is on for the title of "America's Scientist Idol." Videotaped at the 2013 annual meeting of the American Association for the Advancement of Science, this "game show" pits six scientists against each other to see who can best...
Curated Video
Exploring the Advantages and Disadvantages of Sexual and Asexual Reproduction
This video introduces and compares sexual and asexual reproduction in organisms. The advantages and disadvantages of each method are discussed, along with real-life examples of organisms that use both methods of reproduction. The video...
Professor Dave Explains
Mechanisms of Natural Selection Types of Sexual Selection
We touched upon sexual selection when we learned about natural selection. Essentially when there is a variance in the reproductive success of a particular sex for a given species, secondary sex characteristics will develop in that...
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...
Getty Images
Male Peacock (Pavo cristatus) displaying to female, Bandhavgarh National Park, Madhya Pradesh, India
Male Peacock (Pavo cristatus) displaying to female, Bandhavgarh National Park, Madhya Pradesh, India
Untamed Science
Untamed Science: Biology: Evolution: Sexual Selection
Learn about the evolutionary process of sexual selection, a specific form of natural selection. [12:09]