Loggerhead Key existed on the island in the early 1900s. Fauna of Loggerhead Key includes sea turtles, which are monitored by park rangers with the Dry Tortugas National Park to document nesting and hatching rates. The loggerhead sea turtle is also present on the island. In August 2016, a National Park marine biologist stated that 113 loggerhead turtle nests existed on the island at that time. This was the highest recorded nest rate compared previous years. The island also has brown pelicans. In 1972, hundreds of rhesus macaque monkeys were brought from India to Loggerhead Key by Charles River Laboratories. This was
Creature of Havoc to the rules given the story circumstances: damage to the creature (the player) is reduced by 1 STAMINA point due to its tough hide, while rolling a double on the dice when determining the player's attack strength will instantly kill an enemy. The player begins the adventure as the "creature of havoc" of the title, an unidentified, violent beast with no concept of who or where they are. Because the creature cannot make its own decisions, it is governed by instinct, and die rolls are initially used to determine which pages to turn to, rather than the player's own choice.