Living World: Diversity of Life Forms

Learn about the categories, or phylum, of the plant kingdom with examples from each.

Mitosis is an important part of cell division that helps organisms grow and repair themselves.

Different members of a species can have different traits. You can see this in a species found at your local pet store - guppies!

Scientists have accumulated so much evidence in the theory of evolution that it is one of the most widely-accepted theories in science.

Ever wonder how fish survive in the cold waters of the Arctic and Antarctic? It’s partly because of a brilliant evolutionary adaptation.

Oceans absorb the greatest amount of solar radiation on Earth. Ocean warming can lead to glaciers melting and ocean acidification.

Rainbows are beautiful examples of optics in nature. We see them thanks to the reflection and refraction of visible light and water.

Learn about two taxonomy systems that scientists use to classify the life around us.

Errors during meiosis can alter the number of chromosomes in cells and lead to genetic disorders.

A study on bird feeders and beak sizes shows how an everyday human activity can affect the evolution of another species.

9 images of plants in some large naturally occuring habitats called biomes such as tundra, grasslands and boreal forests

14 images of warm-blooded vertebrate animals such as cats, polar bears and wolves that eat meat and other animal tissue

15 images of some warm-blooded vertebrate animals such as cows, deer and giraffes that eat plant vegetation