blue-green algae

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Blue-green algae

What causes algae blooms?

blue-green algae

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blue-green algae: Media

organism

Videos

What causes algae blooms?

What causes algae blooms?

Algae blooms can make lakes and oceans look like abstract paintings.

Video: Encyclopædia Britannica, Inc.

Images

Blue-green algae

Blue-green algae

The Morning Glory Pool at Yellowstone National Park in Wyoming is a brilliant display...

© Yoyo_slc/Shutterstock.com

blue-green algae

blue-green algae

A bloom of blue-green algae sitting atop the water in a freshwater pond.

Christian Fischer

cyanobacteria

cyanobacteria

Cyanobacteria in a hot spring at Yellowstone National Park, Wyoming.

© Brad Pict/Fotolia

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