Mia's friends are fish-sitting while she is away on vacation. Zoe divulges to Sam that different animals need different habitats, and that there are both freshwater and saltwater ecosystems. Examples of the kinds of organisms found in...

A Los Angeles reservoir is the largest ball pit on Earth. Learn the problem and solution of the water treatment plant in LA in a Veritasium video lesson. An unexpected chemical reaction created an issue in the treatment of water, and the...

Shell-building animals are resourceful creatures! An interesting video lesson describes how they use calcium and carbonate ions in the ocean to form their shells. The process is dependent on the equilibrium of calcium and carbonate ion...

Where are they now? Apes are humans' closest evolutionary ancestor, yet they only live in small areas in Africa and Asia. Learn how their geography changes with evolution in a video lesson from the PBS Eon series. 

During The Great Dying, 90 percent of life in the ocean died. A video lesson from the PBS Eon series describes how the oceans recovered. Viewers learn how some species adapted and thrived while others became extinct.

Jellyfish range in size, species, hunting habits, and venom secretions. But one thing most all jellyfish have in common is their ability to survive and flourish in our oceans since before dinosaurs. Watch the video and find out...

Penguins, one of the most beloved bird species in the world, are not only adorable, they are also in grave danger. Five-sixths of the world's penguin species are endangered or nearly endangered, mostly due to human activities such as...

Watch as pygmy seahorses become one with their environment. The life of a pygmy seahorse begins and ends on a branch of coral. An interesting video lesson explores how camouflage protects this delicate species and how they adapt when...

In an atmosphere that contains so much unusable nitrogen, how do organisms get the nitrogen they need to survive? The narrated video discusses how atmospheric nitrogen is converted into the materials we need to build proteins in our...

A three-minute clip covers a new strategy for protecting the coral reefs of Fiji while still allowing fishermen to harvest the fish that people survive on. Connectivity is the name of the game. This colorfully animated resource is a...

Dive into a lesson on the habitat of Earth least studied. A creative lesson describes the characteristics of animals that live in the deepest depths of the ocean. It also shares the concern of scientists that fishing these depths may...

Teach a man to let the big fish go and feed him for many lifetimes to come! An engaging video describes the negative effect current fishing regulations have on fish populations. The lesson outlines the rapid decline in average fish size...

Would you believe marine animals can make their own light? An online resource describes the process of bioluminescence and how animals in the ocean use it to survive. The lesson features a catchy tune that describes the behavior of ocean...