SciShow
Sea Turtles Really DO Carry a (Microscopic) World on Their Backs
Several cultures portray the world as being carried on the back of a giant turtle. As it turns out, sea turtles really do house an entire world on their backs — one of microscopic organisms, that is!
SciShow
Basically Every Mammal Is Good at Swimming... Except Us
From the world’s biggest land animal to a creature built more like a tank than a sub, meet seven mammals that you might not think can swim well, but do! CHAPTERS View all MOOSE 1:33 2 ELEPHANTS 3:21 ARMADILLOS 4:54 CAMELS 5:32 6 SLOTHS 9:03
SciShow
The Secret of Regeneration in... Alligators
Why can amphibians, fish and even some reptiles regenerate limbs, while birds and mammals can’t? Researchers think they might have found a clue on the tip of the alligator’s tail.
Be Smart
Why Do More Species Live Near The Equator?
Find out why more species live near the equator!
SciShow
Why Are Cheetahs the Fastest Land Animal?
Cheetahs are fast. You know this. But which is faster: a cheetah, or a Tyrannosaurus rex?
SciShow
Why Can't We Make Spider Silk?
People have been using silkworm silk to make stuff for thousands of years, but spider silk could potentially be even more useful. It's stronger than steel, super stretchy, and could be made into anything from bridge cables to...
SciShow
Dangerous Soaps: How Animals Use Surfactants
When you think of surfactants, you might think of soaps, detergents and other man-made chemicals. But it turns out that some other animals utilize their own versions of these sudsy molecules.
SciShow
That’s Not a Rattlesnake… It’s an Owl!
When living underground leaves them vulnerable to attack, burrowing owls have a trick up their sleeve—they’ve developed the ability to mimic rattlesnake sounds that scare off predators!
Professor Dave Explains
Introduction to Ecdysozoa: Invertebrates With Cuticles
We spent a lot of time going through the clade Spiralia, as it contains many phyla, but with that complete it's time to move on to its sister clade, Ecdysozoa, the other large category of protostomes. This clade contains most of all the...
Curated Video
Dian Fossey For Kids
Learn about Dian Fossey, the zoologist who gave her life to studying and helping protect the gorillas of Rwanda.
Professor Dave Explains
Phylum Entoprocta: The Goblet Worms
Moving along through Lophophorata, we arrive at Entoprocta, or the goblet worms. There are only about 150 species of these and almost all of them are marine worms. What are they all about? Let's find out now!
Professor Dave Explains
Phylum Bryozoa: The Moss Animals
Bryozoans are some of the strangest animals in the world, part of the clade Lophophorata. Bryozoans are colonial moss animals, but what does this mean? Let's learn about them together!
Professor Dave Explains
Phylum Nemertea: The Ribbon Worms
With Annelida covered, it's time to start looking at some of the smaller phyla that are closely related. First up is Nemertea, the ribbon worms. These are very thin and live in the sea, and they have some very interesting features. Take...
Professor Dave Explains
Phylum Annelida Part 2: Polychaeta (Segmented Marine Worms)
Now that we are familiar with the characteristics of annelids, let's zoom in on the polychaetes, which are the segmented marine worms. What do these worms do in the sea all day long? How are they different from land worms? Let's get a...
Professor Dave Explains
Phylum Annelida Part 1: General Characteristics
Moving on from Mollusca we arrive at another very large clade, Annelida. These are the segmented worms, like the common earthworm, as well as marine worms and leeches, and a bunch of other organisms. What are these all about? Let's...
Curated Video
How Do I Do What You Do?
Jessi answers the question, "How do I do what you do?" and shares 4 essential things that are needed to do what she does.
Professor Dave Explains
Phylum Rotifera Part 3: Subclade Acanthocephala (Parasitic Spiny-Headed Worms)
It's time to wrap things up with Rotifera by looking at the parasitic Acanthocephalans. These are spiny-headed worms that are obligate endoparasites. Which species do they parasitize? What is their morphology? Let's get a closer look!
TMW Media
Discovery with the ALMA Telescope: Emerging sciences in the field
What is Astrochemistry? How can ALMA help Astrochemistry and Astrobiology? What should you do if you want to work in these fields? Discovery with the ALMA Telescope, Part 3
Wonderscape
Science Kids: Snakes
Learn all about snakes. They slide, they slither, and some of them can even "fly." Understand snake biology, life cycle, fun facts, the various varieties of snakes and how snake venom can actually save lives!
Wonderscape
Science Kids: Discovering Ducks
In this video, we learn about the fascinating world of ducks. From their diverse sounds across different cultures to their adaptability in various habitats, ducks are true international citizens. We explore their anatomy and physiology,...
Professor Dave Explains
Phylum Cnidaria Part 1: Introduction and Broad Characteristics
Next up for animal phyla is Cnidaria! This phylum contains jellyfish, sea anemones, corals, and all kinds of other organisms. This one is pretty meaty so it will take several tutorials. Let's start by getting through some information...