What Are the Fastest Marine Animals in the World?
The animal kingdom exhibits immense diversity across terrestrial, aerial, and aquatic environments, showcasing a wide range of shapes, sizes, characteristics, and speeds. Within the ocean, a notable variation exists among marine species, particularly in terms of swimming and diving capabilities. Below is a countdown of the 11 fastest fish species found in our waters, ranked from the fastest to the slowest:
Sailfish
The sailfish, also known as the “spear fish,” holds the title for the fastest marine animal, recorded swimming at speeds exceeding 109 km/h. This remarkable species is named for its distinctive dorsal fin, which resembles a boat sail and stretches along its streamlined blue-silver body.
Sailfish are characterized by their elongated upper jaw, giving them a spear-like appearance.
Swordfish
The swordfish is capable of swimming at speeds reaching up to 111 km/h, although other reports indicate it may exceed 129 km/h. This species inhabits the Atlantic, Pacific, and Indian Oceans, as well as the Mediterranean Sea. Its name derives from its long, sword-like bill, which aids in capturing prey, alongside a prominent dorsal fin and a dark brownish-black back.
Marlin
The marlin, or “swordfish,” is easily identifiable by its long, spear-like upper jaw and extended dorsal fin. Several species of marlin exist, including:
- Atlantic Blue Marlin (Makaira nigricans)
- Black Marlin (Makaira indica)
- Indian-Pacific Blue Marlin (Makaira mazara)
- Striped Marlin (Tetrapturus audax)
- White Marlin (Tetrapturus albidus)
According to studies by the BBC, the black marlin is considered the fastest fish on Earth, evidenced by a captured specimen that swam at an impressive 37 m/s, translating to around 132 km/h.
Wahoo
The wahoo (Acanthocybium solandri) features a striking bluish-green back and thrives in tropical and subtropical waters across the Atlantic, Pacific, Indian Oceans, Caribbean Sea, and Mediterranean Sea. Research indicates that wahoo can reach swimming speeds of up to 77 km/h.
Mahi Mahi
The mahi mahi can achieve remarkable swimming speeds of approximately 93 km/h, thanks to its streamlined body and expansive tail, which enhances its acceleration in the water. Mahi mahi inhabit tropical regions globally and are easily recognized by their distinctive protruding forehead, vibrant color patterns, and eye-catching metallic blue and green hues.
Pilot Whale
Pilot whales are known for their exceptional intelligence and are regarded as some of the smartest marine creatures. Though classified as whales, these mammals are actually a type of dolphin. They have been observed swimming at high speeds of around 76 km/h, often straying toward coastlines due to their strong hunting and grazing instincts.
Flying Fish
The flying fish captivates onlookers with its ability to glide above the water’s surface. In addition to its striking aerial displays, these fish can swim at speeds of up to 70 km/h, an adaptation that allows them to evade aquatic predators.
Named for their gliding ability, flying fish leverage their whip-like tails and wing-like pectoral fins to take flight, propelled upward as wind flows beneath and above their fins.
Bluefin Tuna
The bluefin tuna possesses a robust body that can weigh up to 450 kg, yet it remains one of the ocean’s fastest fish, swimming at speeds of up to 69 km/h and capable of diving as deep as 487 meters. Despite being endangered due to excessive commercial fishing, regulatory bodies have been hesitant to impose strict limits on bluefin tuna catches.
Bontio Tuna
Bontio tuna can achieve swimming speeds of 62 km/h in shallow waters, outpacing many sharks. These fish are medium-sized and belong to the Sardini tribe, which is classified under the tuna and mackerel family.
Barracuda
Barracudas possess elongated and sleek bodies that allow them to swim at impressive speeds of up to 58 km/h. With excellent vision, they are formidable predators in their habitats, capable of rapid movements. Their streamlined shapes and shiny silver scales make them look reminiscent of torpedoes.
Killer Whales
Killer whales, or orcas, rank among the ocean’s most formidable creatures. Although their name might suggest otherwise, they belong to the dolphin family. Traveling in family groups of 5 to 20, these whales can reach speeds of 55 km/h due to their hydrodynamic bodies, which enable them to hunt efficiently.