Not quite a tree
Kelp is a group of large brown algae, not a land plant. Many species anchor themselves to rock with a holdfast, rise on flexible stalks and spread blades into moving canopies. They do not have roots in the familiar terrestrial sense.
A place to hide and feed
Kelp forests create three-dimensional habitat for fish, invertebrates and countless smaller organisms. Some animals graze directly on kelp; others rely on the shelter and food web built around it.
The rhythm of the canopy
Waves, temperature, light, grazing pressure and seasonal storms reshape kelp forests over time. Their health varies by region and species, making local observations especially valuable.
A practical way to care
When diving or snorkeling, avoid grabbing living kelp and keep fins away from the seafloor. On shore, follow local conservation guidance and leave animals where you found them.