SciShow
This Beautiful House Is Made of Snot
These giant balls of mucus may seem like a bizarre sight in the open ocean, but all this snot serves a purpose, both for the tiny creatures that produce it and for the entire ocean ecosystem!
Crash Course
The Skeletal System: It's ALIVE! - CrashCourse Biology
Hank introduces us to the framework of our bodies, our skeleton, which apart from being the support and protection for all our fleshy parts, is involved in many other vital processes that help our bodies to function properly.
Crash Course
Complex Animals: Annelids & Arthropods - CrashCourse Biology
Hank continues our exploration of animal phyla with the more complexly organized annelida and arthropoda, and a biolography on insects.
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.
Curated Video
Chordate
Animals that at least at some stage in their development possess a stiff, rod-like structure running along their back, called a notochord. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...
Curated Video
Invertebrate
An animal without a backbone or spinal column. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract concepts...
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
Khan Academy
Khan Academy: Biology: Taxonomy and the Tree of Life
An explanation of the biological classification of organisms. [12:41]