Manatees and dugongs.
Not sure, but i think that tiger sharks eat dugongs. Nothing eats dugongs, but dugongs eat seagrasses tiger sharks are natural enemies of dugongs so they can get killed by them. Crocodiles, Sharks, Killer Whales. Aboriginal People hunt them for meat and oil because it's their "hunting right". Hope this helped. :)
Yes, they eat about a football field sized amount of grass each day. Making them the largest sea herbivores.
Dugongs can only live where sea grass grows and it is a very slow vegetation to grow. It needs the right tempretures to stay alive so obviously global warming is an issue also boat motors rip the grass up and pollution is also a major issue
Whales, dolphins, dugongs. turtles, seals, walruses, etc.
They have a lifespan similar to that of humans, approx. 70 years.
all sea creatures sleep
Yes. Dugongs and manatees are marine mammals but unlike dolphins they are herbivores. Dugongs subsist on sea grass.
no
sea turtles manatees and dugongs
Dugongs and manatees are members of sirenia.
Whales dolphins seals sea lions manatees walruses dugongs and more