SciShow
How These Animals Lost Their Heads (And Bodies, and Butts)
You'd think that there are some features that, once an animal group evolved to have them, could never really go away, right? Well, Stefan is joined today by hosts from PBS Eons, Journey To The Microcosmos, and Bizarre Beasts to break...
SciShow
A Brief History of Life: When Life Exploded
Right at the beginning of the Paleozoic, there was a huge explosion of more complex life. And that’s when things started to get really interesting. This is our second installment on the history of life, but you can watch in any order you...
SciShow
A Brief History of Life on Earth: The Full Series
From the Archean Eon to the Holocene Epoch, check out this SciShow mini-series for a primer about life on earth.
Crash Course
Chordates - CrashCourse Biology
Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: you're a mammalian amniotic tetrapodal...
Professor Dave Explains
Invertebrate Chordates Part 1: Subphylum Cephalochordata (Lancelets)
Many people presume that all members of Chordata have a backbone, but that actually is not true. Vertebrates have backbones, meaning members of subphylum Vertebrata. There are two other subphyla within Chordata, those being...
Professor Dave Explains
Introduction to Phylum Chordata: Chordate Characteristics and the Chordate Cladogram
We have now completed our study of every single animal phylum but one: Chordata. This is the one that contains humans, as well as the most common animals we interact with every day, like our pets. There are about 81,600 species of...
Visual Learning Systems
Features of Fish: What Is a Fish?
This colorful, lively series of videos explores the fascinating features of fishes. The major characteristics of this widely diverse group of vertebrates are described through the use of live-action video. Special attention is paid to...
Ancient Lights Media
Biological Classification - The Chordata
Biological Classification Set: This clip introduces the phylum of Chordata and the three subphyla of animals of which it is composed
FuseSchool
Animal Classification
So many animals, so many characteristics—how do we classify them all? A short tour of taxonomy awaits within a helpful Fuse School video on Evolution. Science scholars see how scientists sort animals into the main classes and what traits...
Crash Course
Chordates
Did you know that coelacanths, a living chordate fossil, can live at an ocean depth of 2,300 feet, grow to be 6.5 feet long, and weigh almost 200 pounds? The narrator of a video series on evolution continues his way up the evolutionary...
Crash Course
Crash Course Biology #24: Chordates
Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: you're a mammalian amniotic tetrapodal...
Sea Studios Foundation
Shape of Life: Chordate Animation: Amphioxus to Vertebrate Body Plan
Amphioxus' body plan shows what a vertebrate's ancestor might have looked like with a nerve cord, a brain, gill slits, segmented muscles and a notochord that would become the discs in the backbone. [1:31]
Khan Academy
Khan Academy: Taxonomy and the Tree of Life
This video explores the science of taxonomy and where humans fit into the tree of life. [12:41]
Mocomi & Anibrain Digital Technologies
Mocomi: 10 Facts About Alligators
Provides 10 amazing alligators facts.
Mocomi & Anibrain Digital Technologies
Mocomi: Penguins: Facts and Information
Features 11 fun facts about penguins and details on the different types.