According to a report from CNN, Carl Moore of Townsend, Georgia, hauled in a rare goblin shark during an 18-day fishing trip in the Gulf of Mexico. The shark was only the second member of his species ever captured in the Gulf of Mexico and the first in more than a decade.

National Geographic says that John Carlson, a research biologist for the U.S. National Oceanic and Atmospheric Administration, confirmed the authenticity of the photos taken by Moore and determined the shark is approximately 15 feet long and likely a female.

“We don’t know how long they live; we don’t know how often they reproduce, or even how big they are when they reproduce,” Carlson posits, according to National Geographic. “They’re a mystery.”

 According to Shark Project, the goblin sharks live in deep water and must rely on sensors in their head known as ampullae of Lorenzini to navigate the dark waters. These sensors allow them to detect the electrical signals of potential prey.

Discovery notes that goblin sharks eat a variety of animals, including crabs, deep sea fishes, shrimps and many other organisms.

Moore reportedly sent his rare catch packing after snapping some photos.

Photo credit: Carl Moore