Instructional Video12:00
Amoeba Sisters

Animals: Tour of 9 Phyla

12th - Higher Ed
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...
Instructional Video11:30
Crash Course

Simple Animals: Sponges, Jellies, & Octopuses - Crash Course Biology

12th - Higher Ed
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...
Instructional Video10:25
Professor Dave Explains

Phylum Cnidaria Part 1: Introduction and Broad Characteristics

9th - Higher Ed
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...
Instructional Video12:35
Professor Dave Explains

Major Divisions of Kingdom Animalia and the Problem With Animal Phyla

9th - Higher Ed
Soon we are going to dive into a study of all the different kinds of animals, but first we need some kind of road map. What are all the major divisions of Kingdom Animalia? Below kingdom is phylum, so how many animal phyla are there, and...
Instructional Video
Crash Course

Crash Course Biology #16: Animal Development: We're Just Tubes

9th - 10th
Hank discusses the process by which organisms grow and develop, maintaining that, in the end, we're all just tubes. [11:32]