which zone does the hammerhead shark live in?

Answer 1

they live in The Twilight Zone also the middle zone.

Answer 2

Sharks live in all oceans, for much more that 400,000,000 years, that is to say, from the early Silurian period of Paleozoic era!

In the Arctic ocean greenland sharks (Somniosus microcephalus) are present and prosperous; in the subantarctic waters the large southern sleeper shark (Somniosus antarcticus) is common, even feeding on colossal squids (Mesonychoteuthis hamiltoni).

Between these two geografic extremes, sharks live in all oceans and some species even live in fresh water. They can live in surface as well as abissal waters; perhaps even in the still very poorly explored Pacific deep-sea trenches, unknown shark species may thrive.

There are more than 470 different extant species, some very strange and puzzling, like the rare goblin shark (Mitsukurina owstoni) and the deep-sea megamouth (Megachasma pelagios), hammerheads, all species of the saw shark genus, etc.