SciShow
Hospitals are Hotspots for Antibiotic-resistant Germs
While antibiotics have saved millions of lives, misusing them can speed up how fast bacteria evolve to resist them. And it turns out that one of the biggest hotspots for these antibiotic-resistant bacteria…is hospitals.
TED-Ed
Why didn't this 2,000 year old body decompose? | Carolyn Marshall
It may not appear very lively six feet underground, but a single teaspoon of soil contains more organisms than there are human beings on the planet. From bacteria and algae to fungi and protozoa, soils are home to one quarter of Earth's...
Bozeman Science
Evolutionary Significance of Cell Communication
Paul Andersen describes how cell communication is used in both single-celled and multicellular organisms. He starts by describing the symbiotic relationship between the bobtail squid and the bacteria Vibrio fisheri. He explains how...
SciShow
The Tree of Life Is Messed Up
Taxonomy is a powerful tool, and one that modern biology wouldn't be able to function without. But trying to shoehorn the messy, complicated web of interrelationships that is biology into neat boxes has resulted in a pretty messy tree of...
SciShow
Bdelloids: The Most Hardcore Animals in the World?
Bdelloid rotifers have a superpower. If their DNA is shredded to pieces, whether from a lack of water or a blast of radiation, they can put it back together.
SciShow
Breaking News: Mars Suitable for Life
Earlier today, mission specialists with NASA's Mars Science Laboratory announced that they have found, for the first time, evidence of an ancient environment on Mars that could have sustained life. Hank tells us the specifics in this...
PBS
How the Chalicothere Split In Two
Two extinct relatives of horses and rhinos are closely related to each other but have strikingly different body plans. How did two of the same kind of animal, living in the same place, end up looking so different?
SciShow
DNA and Dung Beetles
Chapters View all CARL LINNAEUS 1:24 20% OF KNOWN SPECIES 1:38 NOT 100 MILLION 1:51 DEEP SEA LOBSTERS 2:25 VENEZUELAN SNAIL 2:28 FISH COUNT 2:39
SciShow
What Squids and Frogs Taught Us About How Brain Cells Talk
Back in the early days of neuroscience, we didn't study the animals you might expect to learn about how brain cells communicate.
Bozeman Science
LS4A - Evidence of Common Ancestry and Diversity
In this video Paul Andersen describes several types of evidence for common ancestry. This evidence is contained in the fossils, embryos and molecules of living organisms. Even though life on our planet is incredibly diverse there are...
TED Talks
TED: To solve old problems, study new species | Alejandro Sanchez Alvarado
Nature is wonderfully abundant, diverse and mysterious -- but biological research today tends to focus on only seven species, including rats, chickens, fruit flies and us. We're studying an astonishingly narrow sliver of life, says...
SciShow
Eyeball Licking: Please Don't
So you think eye licking (also known as worming) is just a harmless bit of foreplay? Think again.
SciShow
Best Nap Ever: Rotifers Wake Up After 24,000 Years
Tiny creatures called rotifers seem to have no problem continuing their lives after waking from a refreshing 24,000-year nap. And DNA samples from goats that lived 30,000 years ago tell us a bit about how humans were managing them back...
PBS
Can We Get DNA From Fossils?
In 1993, scientists cracked open a piece of amber, took out the body of an ancient weevil, and sampled its DNA. Or, at least, so we thought. It took another few decades of research, and a lot of take-backs, before scientists could figure...
Bozeman Science
LS1B - Growth and Development
Paul Andersen answers the following question: How do organisms grow and develop?
Amoeba Sisters
Ecological Succession: Nature's Great Grit
Discover a process that truly demonstrates nature's grit: ecological succession! The Amoeba Sisters introduce both primary and secondary succession
Amoeba Sisters
Food Webs and Energy Pyramids: Bedrocks of Biodiversity
Explore food chains, food webs, energy pyramids, and the power of biodiversity in this ecology video by the Amoeba Sisters! This video also introduces general vocabulary for the unit of ecology.
SciShow
What the Frick is a Globster?
Sometimes, big hunks of strange-looking flesh wash up onshore and then people think that they're dinosaurs or giant octopi or previously undiscovered species. Turns out the ocean can do nasty things to dead things...making them just...
SciShow
Bioprinting and Pig Chimeras: The Possible Future of Organ Transplants
From bioprinting to growing organs in non-human animals, doctors and scientists are looking at different ways to make organ transplants a less challenging procedure.
Bozeman Science
Diploid vs. Haploid Cells
In this video Paul Andersen explains the difference between diploid and haploid cells. He starts with a brief description of the central dogma and how genes code for proteins. He then uses the phenotype of red hair to explain that humans...
Amoeba Sisters
Dichotomous Keys: Identification Achievement Unlocked
Join the Amoeba Sisters in discovering how to use a dichotomous key to identify organisms. This video also touches on the importance of scientific names. Table of Contents: Intro 00:00 What is a Dichotomous Key? 0:29 Scientific Names vs....
Be Smart
Is This A NEW SPECIES?!
This is the first-ever video of what we're calling the "hermit crab caterpillar"! We're pretty sure this strange caterpillar is a NEW SPECIES. We went to the Peruvian Amazon to see amazing things, but we never expected this :) But that...
Crash Course
Ecology - Rules for Living on Earth: Crash Course Biology
Hank introduces us to ecology - the study of the rules of engagement for all of us earthlings - which seeks to explain why the world looks and acts the way it does. The world is crammed with things, both animate and not, that have been...
Bozeman Science
Ecological Succession
Paul Andersen describes the process of ecological succession. During this process life reestablished itself after a disturbance. During primary success all of the material is removed including the soil. For example during a volcanic...