These include the sunlight zone (epipelagic), the twilight zone (mesopelagic), the midnight zone (bathypelagic), the abyssal zone (abyssopelagic), and the hadal zone (trenches) ...

It's generally thought that the zone got its name from its liminal state: a murky space where the last rays of sunlight can reach ...

Imagine a world where sunlight barely penetrates, where darkness reigns and strange, glowing creatures drift silently through ...

It includes the twilight zone and the midnight zone, where strange and delicate animals thrive in the near absence of sunlight. Whales and commercially valuable fish such as tuna rely on animals in ...