Sharks primarily inhabit the ocean's pelagic zone, which includes both the open sea and coastal regions. Depending on the species, they can also be found in the benthic zone near the ocean floor and in shallow waters of the neritic zone. Some species, like the bull shark, can even tolerate freshwater environments. Overall, sharks are versatile predators found in a variety of marine habitats.
the sea otter zone
Twilight zone
They live in the Pelagic Zone
sunlight zone
They hunt at sea but I have seen them loafing about in the estuary zone.
pacific
Pelagic zone
Sea stars live in the mid tide zone or the low tide zone.
no sea things do not live in the twilight zone
they live in the abyssal zone
Intertidal Zone Sunlight Zone, and a few species in the twilight zone .
They live in the Carribean Sea in the Nuiritic Zone.