PBS
When Did the First Flower Bloom?
During the Cretaceous Period, dinosaurs were more diverse, more fierce, and more strange than ever. But something else was happening under the feet of the terrible lizards: for the first time in history, there were flowers.
SciShow
Are Viruses Alive?
Viruses all around us, they evolve, grow, and can be killed. But are they alive?
Crash Course
Community Ecology II: Predators - Crash Course Ecology
Hank gets to the more violent part of community ecology by describing predation and the many ways prey organisms have developed to avoid it.
SciShow
Mutant Mosquitoes in Florida
In the search for longevity, scientists have found the longest-lived vertebrates on the planet in the arctic. Meanwhile, in warmer climes, the FDA approves a new method for combating disease-carrying mosquitoes.
Crash Course
The Plants & The Bees: Plant Reproduction - CrashCourse Biology
Hank gets into the dirty details about vascular plant reproduction: they use the basic alternation of generations developed by nonvascular plants 470 million years ago, but they've tricked it out so that it works a whole lot differently...
Be Smart
The Romantic Lure of Moonlight
Organisms of all shapes and sizes synchronize their behaviors using biological clocks. Some keep pace with the daily rising and setting sun using circadian rhythms. Others use annual cycles or the changing seasons as their cue. But many...
SciShow Kids
It’s Alive! Biology for Kids
You're alive! And so are all the plants in your garden, the birds in the sky, and the fish in the ocean! But how do we know they're alive? What does it even mean to be alive in the first place!? Join Jessi and Squeaks to learn how...
Curated Video
Exploring the World of Owls: Fascinating Facts and Myths
This video explores the fascinating world of owls, highlighting their unique characteristics and behaviors. From their intelligence and silent flight to their powerful hunting abilities and monogamous mating habits, owls are truly...
Curated Video
Lytic cycle: the reason why bacteria hate viruses
Bacteria hate viruses called bacteriophages, and rightfully so. These viruses are vicious! They make bacteria their hosts and create multiple copies in a process called lytic cycle. In this video, we will do a quick review of the main...
Curated Video
The Magnificent Peacock: Beauty, Behavior, and Facts
The Peacock is a magnificent bird known for its vibrant colors and elaborate tail feathers. Males display their feathers to attract females during mating rituals, while females have more subdued feathers. Peacocks are social creatures...
Curated Video
The Value of Endurance
In this video, Salvatore the salmon, a member of the Salman Adai family from Canada, shares his insights on endurance. Through his own experiences of swimming against the current and overcoming obstacles, Salvatore emphasizes the...
Curated Video
Artificial propagation
Producing new plants by human intervention and artificial methods. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
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
Dawson's Bee
For this large burrowing bee, mating season isn’t just competitive – it’s deadly. Biology - Animal Kingdom - Learning Points. Dawson's burrowing bee is one of the largest bee species in the world. Dawson's bees are solitary bees, and...
Curated Video
Factpack: Deadliest Animals
Which animal poses a major threat to humans? You may be surprised. Biology - Adaptation And Evolution - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to grab attention at the...
Curated Video
Factpack: Bacteria
Find out about these tiny life-forms that have the potential to determine the big things in life, such as whether we live or die. Biology - Cells And DNA - Learning Points. A Twig FactPack Film. Open a discussion on what has been already...
Curated Video
Asexual Reproduction in Plants
Some plants don't need both a male and female to reproduce - they can do it alone. Which plants can do this and how do they manage it? Biology - Plants - Learning Points. Plants use a variety of methods to reproduce. Methods include...
Curated Video
Natural Selection - Survival of the Fittest
Darwin's theory of Natural Selection reveals an intense struggle for existence: a constant fight between individuals, species, and their physical environment, where only the fittest survive. Biology - Adaptation And Evolution - Learning...
Curated Video
Migration: Reproduction
Some animals must migrate to reproduce. Pacific salmon migrate thousands of kilometres to spawn - an epic journey which ends in death. Biology - Ecosystems - Learning Points. Pacific salmon migrate thousands of miles to reproduce. Their...
Curated Video
Nanotechnology: What is It?
Still in its early stages, nanotechnology has the potential to change our world. What is it and how could it be used in the future? Chemistry - Atoms And Bonding - Learning Points. Nanotechnology is engineering on the smallest scale....
Curated Video
Antibiotics
Discover why antibiotics have become one of the most frequently used medicines. And why their efficiency is threatened by the emergence of superbugs. Biology - Healthy Living - Sir Alexander Fleming discovered the first antibiotic for...
Curated Video
Therapeutic Stem Cells
Stem cell therapy is a radical new treatment with the potential to restore eyesight and heal injuries. However, many object to its moral implications. Biology - Cells And DNA - Learning Points. Stem cells can repair or rebuild damaged...
Curated Video
Nanotechnology: Is It Safe?
Nanotechnology is already widely used, but some scientists are warning it could prove dangerous in future. Why? Chemistry - Atoms And Bonding - Learning Points. Nanomaterials take on very different properties to their larger particles....