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
Did Scientists Really Make Metallic Hydrogen?
The Researchers reconstructed the face of the organism which might be one of our earliest ancestors. Meanwhile, two researchers from Harvard announced that they have created solid metallic hydrogen.
Professor Dave Explains
Stages of Animal Development: Cleavage, Gastrulation, Organogenesis
Before diving into animal diversity, we need a bit more information about animal development, as it will help us understand what we're looking at later. We know that animals reproduce sexually, so a sperm fertilizes an egg to yield a...
Nature League
What Are Invertebrates? - Lesson Plan
In this Nature League Lesson Plan, Brit introduces the invertebrates of Earth, including their names, relationships, forms, and awesomeness.