This video is answering the question of what is an ecosystem.

Earths oceans are wide reaching and teeming with life. One microscopic aquatic organism plays a major role in making life on Earth possible: phytoplankton. Under certain conditions, excessive phytoplankton growth can result in an area...

On this episode of Breaking Trail, Coyote and the crew head out at night in search of some Hungry Hippos! Literally! Hippopotamus, a primarily aquatic mammal, are known to leave the water at night to graze in nearby fields and...

Biological Classification Set: This clip introduces the phylum Porifera and the phylum Cnidaria.

Releasing Chinese giant salamanders back into the wild sounds like a good idea, but it's causing problems for the salamanders and for our understanding of what a species even is.

The ecosystem of temperate grasslands both below and above the ground. Animal interactions with the grassland system. The importance of protecting this critically threatened habitat.

Microbes are used for everything from baking to brewing, but wastewater treatment is where they do some of their most important work.

Planets Set: 3. This clip presents a simplified overview of the Earth's geography and biomes.