Seaweeds

"Seaweeds offer a rich variety of habitats for animals and serve as important food sources. David Thomas describes the red, brown, and green classifications that encompass over ten thousand species and emphasizes that seaweeds can be understood as dynamic canopies only by visualizing them under water. He explains how seaweeds get all of their nutrients from the surrounding water, needing roots only to anchor to the sea floor, and how some species use "anti-grazing" strategies to discourage fish by releasing swift doses of unappetizing acids.". "The economic value of seaweed is astounding.…