Sinister faces are not always feared. Polyodon Spathula, evidence.
These fish resemble sharks, but do not have sharp teeth. Polyodon absolutely no
relative of sharks. Despite the spooky face, this fish is not malignant.
Calm
nature and could not be because of a toothless bite.
These fish are not
dangerous like arapaima and alligator. Place of origin, this fish is often
become the target of predators. For example arapaima, alligator spatula, birds,
and humans. To protect them from attack, polyodon blessed with skin that is hard,
thick, and strong.
Having sensors
Polyodon including ancient fish. These fish have lived on
earth since 300-400 million years ago. Or about 50 million years before
dinosaurs were born. The long snout fish roam the waters of many rivers and
streams Mississippi St. Croix, in the USA. These fish like the vast waters and
the (over 6 feet). And often roam with catfish, sturgeon, buffalow, and common carp.
Style casual swim, not speeding.
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Polyodon Spathula (Paddle Fish) |
Rapid growth rate. Polyodon can mature along 1.5-2 m, weight
91 - 100kg. Age of 20-30 years. In fact there have been reported that are able
to live up to 55 years. Long flattened snout that serves as a sensor. Prey
detection device is called the rostrum. Parts of the body that are very
sensitive to electrical currents generated by hordes of plankton.
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When hordes of plankton close to the muzzle, polyodon stay
open his mouth wide. In the oral cavity there is organs filter plankton. While swimming is quiet, the little animal was eaten. Aside from
being a candidate prey tracking device, muzzle polyodon also useful for
detecting environmental conditions that have advantageous. This is particularly
important when migrating polyodon.
Not wild
His face is often mistaken as a sinister predator fish meat.
Though the fish is omnivorous. The main food is plankton, small fish, plants,
and small animals that float on the water surface. Polyodon sexes are difficult
to distinguish. Bodied males usually larger than females. Polyodon adult
females at the age of 9-10 years. While the male is ready to spawn at age 6-7 years.
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