TED-Ed
The Three Different Ways Mammals Give Birth
All mammals have warm blood, are vertebrates, breathe with their lungs, have hair or fur on their bodies, and produce milk for their young. But not all mammals give birth to their young in the same manner. Watch a video that explains how...
Be Smart
How Evolution Turned a Possum into a Wolf
Do bats really have thumbs? Explore this, and many other intriguing topics using a short video from a great science series. Viewers learn to differentiate between analogous and homologous structures, why natural selection favors traits...