Here's why:
* Benthic organisms live on, in, or near the bottom of a body of water.
* Hermit crabs primarily live on the ocean floor, where they scavenge for food and find shells to inhabit.
* They are often found in shallow water, along coastlines, and sometimes even in tide pools.
While hermit crabs might occasionally venture up into the water column, their main habitat and lifestyle are firmly rooted on the seabed, making them a textbook example of a benthic organism.