In King Kong, the island is never mentioned by name and is located at approximately 12°S 78°E / 12°S 78°E / -12; 78 – 2000 miles west from the coast of Periuk, Indonesia.

In the sequel film Son of Kong, Carl Denham returns to Skull Island when there was a mention of some treasure that was hidden there.

These include previously unknown species such as snake-like amphibians with enormous heads capable of swallowing a human whole; foot-long creatures that combine squid and crustacean characteristics with bio-luminescent sails tipped with poisonous stingers; giant spiders with 7-foot bodies and 8-foot-long legs ending in hand-like appendages.

The human civilization that inhabits Skull Island at least through the 20th century is the last remnant of a previously unknown super-race called the Tagatu (a combination of two formerly separate tribes: the Tagu and the Atu).

Drawn to its spectacular makeup by their insatiable curiosity, the Tagatu believed their mastery of biological and organic sciences could overcome Skull Island's dangers.

Among the many mysteries revealed in the work is the reality that on Skull Island the dinosaurs never died out, but continued to evolve over the intervening 65 million years.

Primary among these is the discovery of remnants of "the Old City", which was established by the Tagatu at the zenith of their civilization in the center of the island in an ideal valley between the two mountains.

The Storyteller's tale, along with Vincent and Driscoll's findings, suggest that the eerie skull visage that gave the island its name may have been the work of human hands.

In Peter Jackson's remake, Skull Island's position west of Sumatra remains the same, in a region afflicted by magnetic anomalies and violent sea storms.

As the island slowly receded into the sea, life was forced to adapt, resulting in an ecosystem of bizarre and nightmarish creatures.

Three thousand years before, an advanced civilization from Southeast Asia migrated to Skull Island, bringing with them domesticated animals such as Gaur and the giant ancestors of Kong.

To coincide with the 80th anniversary of both characters, Altus Press released an officially sanctioned novel titled Doc Savage: Skull Island in March 2013, which sees King Kong meeting pulp hero Doc Savage, written by Will Murray and artist Joe DeVito, who made the cover artwork.

[3] In his review for the New York Journal of Books, playwright-author Mark Squirek concluded: Altus Press also released an authorized crossover novel, King Kong vs. Tarzan, in the summer of 2016.

The island is located in the South Pacific and sits in the eye of a massive swirling storm system that conceals it from the outside world.

During the credits of Godzilla: King of the Monsters, a newspaper clipping states that the awakened Titans are converging on Skull Island, which is becoming unstable.

Besides King Kong and the natives, much of the wildlife on Skull Island consists of many kinds of prehistoric animals from each different era, such as dinosaurs.

Much of the island's ecosystem in the film and supplementary material is populated by naturally-evolved hybrids of plant and animal, referred to as "Florofauna" by Monarch scientists.