WHAT IS THE WORLD'S FASTEST FISH?




This is an excellent question specifically designed by children to make their parents look dumb. However I have an answer - in fact 'the' answer. So, just how fast is the fastest fish in the world?

The world’s fastest fish is the Indo-Pacific sailfish, Istiophorus platypterus. This sport fish can swim up to 68 miles per hour which is an incredible speed, especially when compared to the cheetah - the fastest living land animal - which can reach a top speed of between 70 and 75 mph!

What are Sailfish?

Sailfin fish Feeding
Sailfish are two species of fish in the genus Istiophorus, living in warmer sections of all the oceans of the world. They are predominately blue to grey in colour and have a characteristic erectile dorsal fin known as a sail, which often stretches the entire length of the back. Another notable characteristic is the elongated bill, resembling that of the swordfish and other marlins. They are therefore described as billfish in sport fishing circles.

Both species of sailfish grow quickly, reaching 1.2-1.5 m (4-5 ft) in length in a single year, and feed on the surface or at mid-depths on smaller pelagic forage fish and squid. Individuals have been clocked at speeds of up to 110 km/h (70 mph), which is the highest speed reliably reported in a fish.Generally, sailfish do not grow to more than 3 m (10 ft) in length and rarely weigh over 90 kg (200 lb).

The sail is normally kept folded down and to the side when swimming, but it may be raised when the sailfish feels threatened or excited, making the fish appear much larger than it actually is. This tactic has also been observed during feeding, when a group of sailfish use their sails to "herd" a school of fish or squid.

Sailfish are highly prized game fish and are known for their incredible jumps. They can appear in a startling array of colours, from subdued browns and grays to vibrant purples and even silver. Their body colours are often highlighted by stripes of iridescent blue and silver dots. Sailfish can change their colours almost instantly; a change controlled by their nervous system. The sailfish can rapidly turn its body light blue with yellowish stripes when excited, confusing its prey and making capture easier, while signalling its intentions to fellow sailfish.

For related articles click onto the following links:
ARE JELLYFISH FISH?
CAN FLYING FISH REALLY FLY?
DO FISH SLEEP
ELECTRIC EEL - Electrophorus electricus
HOW FAST IS A SNAIL?
HOW LONG CAN A FLYING FISH FLY FOR?
THE WORLD'S UGLIEST FISH
WHAT IS THE WORLD'S FASTEST FISH?
WHAT IS THE WORLD'S MOST POISONOUS FISH?

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