SciShow
6 Types of Odd Body Armor
From medieval knights to face shields, humans are pretty big fans of armor. But it turns out that other organisms use armor, too! Except sometimes, their armor doesn’t look like anything we’d expect.
Amoeba Sisters
Biomagnification and the Trouble with Toxins
Explore biomagnification which can happen when toxins become more highly concentrated when moving up through trophic levels in the food chain. Uncontrolled use of DDT is used in video as an example. Learn why bioaccumulation can occur in...
Amoeba Sisters
Asexual and Sexual Reproduction
Join the Amoeba Sisters as they compare and contrast asexual reproduction with sexual reproduction. Table of Contents: Intro 00:00 Asexual Reproduction 0:59 Sexual Reproduction 2:21 Disadvantages and Advantages of Sexual Reproduction...
Amoeba Sisters
Endosymbiotic Theory
Explore the endosymbiotic theory with the Amoeba Sisters! This theory explains the development of the eukaryote cell from prokaryote cell symbiosis. Scientific theories are also briefly defined. Table of Contents: Intro 00:00 What is a...
TED Talks
Paul Ewald: Can we domesticate germs?
Evolutionary biologist Paul Ewald drags us into the sewer to discuss germs. Why are some more harmful than others? How could we make the harmful ones benign? Searching for answers, he examines a disgusting, fascinating case: diarrhea.
Crash Course
Comparative Anatomy: What Makes Us Animals - Crash Course Biology
Hank introduces us to comparative anatomy, which studies the similarities and differences in animal anatomy to support the theory of evolution and the shared ancestry of living things.
SciShow
This Is What Peak Crustacean Looks Like
We may think of a lot of critters with crab-like body plans as crabs, but, technically, many of them are other types of crustaceans. So why do they share so many physical traits?
SciShow
Do Bacterial Cells Store Memories?
Some bacteria seem to be using a type of memory to help them alter future behaviors, based on their past experiences.
SciShow
Meet Our Nitrogen-Breathing Bacterial Relative
Oxygen is pretty great stuff, but this recently discovered organism couldn’t care less about oxygen. It breathes nitrogen and may offer a window into how the types of cells in OUR bodies may have evolved billions of years ago.
Amoeba Sisters
Prokaryotic vs. Eukaryotic Cells (Updated)
This Amoeba Sisters video starts with providing examples of prokaryotes and eukaryotes before comparing and contrasting prokaryotic cells with eukaryotic cells! Contents: 00:00 Intro 1:27 Modern Cell Theory 1:37 3 Domains (with examples...
TED-Ed
TED-ED: The threat of invasive species - Jennifer Klos
Massive vines that blanket the southern United States, climbing high as they uproot trees and swallow buildings. A ravenous snake that is capable of devouring an alligator. Rabbit populations that eat themselves into starvation. These...
SciShow
Purple Bacteria: Turning Poop Into Biofuel
Scientists are turning wastewater into fuel, using special bacteria, and other scientists have unveiled bionic mushrooms that can produce electricity!
SciShow
Glowing Rats and Extreme Genetic Engineering
Hank discusses some of the recent developments in synthetic biology, and why some advocacy groups are calling for a moratorium on those developments.
Amoeba Sisters
Archaea
What is the domain Archaea? Explore the archaeans with the Amoeba Sisters! This introductory video compares and contrasts characteristics of Archaea with bacteria. Time-Stamped Table of Contents: 00:00 Intro 0:47 Extremophiles 1:00...
Amoeba Sisters
Protists and Fungi
Get introduced to protists and fungi with the Amoeba Sisters! This video explores basic cell type, mode of feeding, habitat examples, and ecology of both protists and fungi. This video also mentions a few examples of how protists and...
SciShow
Two Fungi That Produced a New Type of Antibiotic: SciShow Talk Show
Andrea and Don Stierle talk with Hank about their work analyzing various microorganisms in the Berkeley Pit and how they discovered a new type of antibiotic. Then Jessi joins in to show off Blueberry, the northern blue-tongued skink.
TED-Ed
TED-Ed: How a single-celled organism almost wiped out life on Earth - Anusuya Willis
There's an organism that changed the world. It caused the first mass extinction in Earth's history and also paved the way for complex life. How? Anusuya Willis explains how cyanobacteria, simple organisms that don't even have nuclei or...
Amoeba Sisters
Carbon and Nitrogen Cycles
Explore the cycling of carbon among carbon reservoirs! Then discover the importance of nitrogen, essential for amino acids and nucleotides, and learn about the nitrogen cycle! Expand details for table of contents. Table of Contents:...
SciShow
Meet CERNs New Particle A DoubleCharm Baryon
This week, CERN announced a new particle that will help further understanding of the fundamental forces, and a simulation of ancient creatures may give us a clue as to how life grew beyond the microscopic.
SciShow
Taboos of Science
Hank discusses some of the taboos which have plagued scientific inquiry in the past and a few that still exist today.
SciShow
Can We Grow Plants On the Moon?
Despite how easy it looks in movies, growing plants on other planets is trickier than you might imagine.
SciShow
This Animal Has a Retractable Anus
Most animals keep their poop chutes on the opposite side of their body from where they eat. But that doesn’t mean it’s always the case, and bryozoans are great examples of how creative you can get with where you put your anus.
TED Talks
TED: A census of the ocean | Paul Snelgrove
Oceanographer Paul Snelgrove shares the results of a ten-year project with one goal: to take a census of all the life in the oceans. He shares amazing photos of some of the surprising finds of the Census of Marine Life.