Amoeba Sisters
Animals: Tour of 9 Phyla
Join the Amoeba Sisters in exploring some general animal characteristics, major vocabulary used in classifying animals (such as symmetry, protostome vs deuterostome, cephalization, and coelom), and take a general tour of 9 major animal...
SciShow
What Animal Dominates Earth?
There is a group of animals with more species than any other group, but Earth has such an astonishing variety of life that figuring out which group dominates is tricky.
SciShow
6 Species Unlike Anything Else | Evolutionary Loners
What happens when a species is the only of its kind? This phenomenon is called a monospecific taxon. Studying these special species can help us better understand not just those sparse groups, but all life on this planet! Join Olivia...
SciShow
What is Taxonomy and Why is it So Complicated?
The classification of animal groups is essential to the the development of modern biology—but it's extremely complicated. Trying to shoehorn the messy, complicated web of interrelationships that is biology into neat boxes has resulted in...
SciShow
6 Lonely Branches on the Tree of Life
When there’s only one species on an evolutionary branch, we call it a monospecific taxon. Studying these special species can help us better understand not just those sparse groups, but all life on this planet. Chapters Homo sapiens 0:53...
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...
Amoeba Sisters
Classification
Explores classification in biology as well as taxonomy hierarchy: domain, kingdom, phylum, class, order, family, genus, and species with The Amoeba Sisters! This video also discusses the importance of scientific names and why...
SciShow
What Animal Dominates Earth?
There is a group of animals with more species than any other group, but Earth has such an astonishing variety of life that figuring out which group dominates is tricky.
SciShow
What Did the First Animal Look Like?
If you trace your way back along the tree of life, eventually you'd come face-to-face with the very first animal. But what exactly would that animal have looked like?
Crash Course
Animal Development: We're Just Tubes - Crash Course Biology
Hank discusses the process by which organisms grow and develop, maintaining that, in the end, we're all just tubes.
Crash Course
Taxonomy: Life's Filing System - Crash Course Biology
Hank tells us the background story and explains the importance of the science of classifying living things, also known as taxonomy.
Crash Course
Simple Animals: Sponges, Jellies, & Octopuses - Crash Course Biology
Hank introduces us to the "simplest" of the animals, complexity-wise: beginning with sponges (whose very inclusion in the list as "animals" has been called into question because they are so simple) and finishing with the most complex...
Curated Video
Linnaean hierarchy
A hierarchical system for biological classification, created by Carl Linnaeus in the 18th century. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
Curated Video
Velvet Worm
Discover the bizarre hunting habits of the mucus-slinging velvet worm. Biology - Animal Kingdom - Learning Points. There are around 180 species of velvet worm, which together make up a distinct phlyum called Onychophora. Velvet worms are...
Curated Video
What is an Arthropod?
With over a million known species, arthropods are the most diverse group of animals on the planet. Find out more about their shared characteristics. Biology - Animal Kingdom - Learning Points. A Twig Curriculum Film. Delivering key...
Professor Dave Explains
Phylum Phoronida: The Horseshoe Worms (And a Summary of Lophophorata)
Wrapping up Lophophorata, as well as Spiralia, we arrive at Phoronida, or the horseshoe worms. There are only about 20 species in this phylum, and they are quite fascinating. Let's check them out before moving on to Ecdysozoa!
Professor Dave Explains
Phylum Brachiopoda: The Lamp Shells
Continuing through Lophophorata, we arrive at Brachiopoda, the lamp shells. There aren't many of these left today, but they are fascinating tiny little sea creatures, so let's learn about them now!
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!
Mazz Media
Kingdom
This live-action video program is about Kingdoms. The program is designed to reinforce and support a student's comprehension and retention of the word through use of video footage, photographs, diagrams and colorful, animated graphics...
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 Mollusca Part 5: The Lesser Known Classes
It's time to wrap things up with the mollusks, so let's look at five smaller classes consisting of lesser known species. These are Polyplacophora, Monoplacophora, Scaphopoda, Solenogastres, and Caudofoveata. What kinds of creatures are...
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...
Professor Dave Explains
Phylum Mollusca Part 1: General Introduction
We've covered most of Spiralia, but now it's time to dive into the final subclade, Lophotrochozoa. This contains several phyla, the most diverse of which is Mollusca. This phylum includes snails, slugs, octopuses, squids, oysters,...
Visual Learning Systems
Investigating Protists: Plant-like Protists
Eukaryotes that are clearly not animals, plants, or fungi belong to a very diverse and fascinating group called protists. This series of videos uses captivating video footage to illustrate organisms from tiny microscopic creatures to...