Sea grass are more salt tolerant in order to live in sea water. They also have specialized roots which help them against the currents.
There are only three types of animals that can eat the sea grass directly, others eat the detritus.

Residents: Residents are the animals that permanently live in the sea grass.



Migrants: Animals that come to feed on residents. They take shifts during the day and night taking turns eating.



Travelers: Large animals such as manatees, dolphins, and shark that also come for food.