Kelp
Kelps are large brown algae seaweeds that make up the order Laminariales. There are about 30 different genera.
Elk
There are numerous subspecies of elk described, with six from North America and four from Asia, although some taxonomists consider them different ecotypes or races of the same species (adapted to local environments through minor changes in appearance and behavior). Populations vary as to antler shape and size, body size, coloration and mating behavior. DNA investigations of the Eurasian subspecies revealed that phenotypic variation in antlers, mane and rump patch development are based on "climatic-related lifestyle factors".
Of the six subspecies of elk known to have inhabited North America in historical times, four remain, including the Roosevelt ("C. canadensis roosevelti"), Tule ("C. canadensis nannodes"), Manitoban ("C. canadensis manitobensis") and Rocky Mountain ("C. canadensis nelsoni"). The Eastern elk ("C. canadensis canadensis") and Merriam's elk ("C. canadensis merriami") subspecies have been extinct for at least a century.