Deep Look

Deep Look films small animals through macro lenses and microscopes, and the result is some of the most beautiful science footage on YouTube. The full episodes from KQED in San Francisco and PBS Digital Studios mostly run around four or five minutes and pair the images with one clear explanation, such as why banana slugs are so slimy. Start with the mantis shrimp episode. It shows the strike the channel calls the fastest in the animal kingdom, then explains the animal's extraordinary eyesight, which can detect polarized light that people cannot see.