Marlin

Marlin is a term with several distinct uses across biology, technology, entertainment, and industry.

In biology, marlin refers to any of several large billfishes belonging to the family Istiophoridae, including blue, black, white, and striped marlins. These are pelagic, highly migratory fish found in warm oceans worldwide. They are characterized by elongated bodies and long spear-like bills, and they are prized as game fish though they face conservation pressures from overfishing.

In technology, Marlin denotes Marlin firmware, an open-source program for controlling many 3D printers, particularly those based on RepRap. Written for Arduino- and RAMPS-compatible controllers, it interprets G-code to manage motors, extruders, temperature regulation, andbed leveling, with various features to optimize print quality. The firmware is maintained by a global community and is widely used on affordable printers.

In popular culture, Marlin is a fictional character in Pixar’s Finding Nemo (2003) and Finding Dory (2016). He is a clownfish and Nemo’s father, depicted as cautious and protective as he undertakes a journey across the ocean to find his son.

Marlin Firearms refers to an American firearms manufacturer known for lever-action rifles and other sporting firearms. Established in the late 19th century, the company is noted for producing reliable rifles used by hunters and sport shooters.