Giant Kelp

Scientific Name: Macrocystis pyrifera
Range: Coast of North America, South America, South Africa, New Zealand, and southern Australia
Habitat: Subtidal rocky reefs
Diet: Photosynthesis
Size: Up to 100 ft (30 m)
Fun Fact: Giant kelp contains algin–a thickening and stabilizing compound–that is harvested for use in many everyday products like toothpaste, ice cream, cereal and cosmetics.