 So these are actually photosynthetic bacteria rather than algae, but the common name. They're referred to by as harmful algal blooms or HABs for short. Okay, and I think a lot of people have seen these blooms in standing bodies of water, but they could probably be confused with some other things. Now, go ahead and explain what they look like to a normal layperson if they're near a body of water, a pond, or even a lake or whatnot.