Archive for the ‘Fish’ Category

postheadericon All About Tuna

One usually can not think of tuna as an extraordinary creature, but after learning more about this fish, you will see that there is more to him than at first glance. Tuna is the largest of Scombridae (mackerel), family, and are part of the genus Thunnus. There are over 48 different species of tuna, including yellowfin tuna, Albacora, bacoreta, tuna, black fin tuna, tuna, thin, and mackerel. The body of one ton is very flexible and has two wings, together with five mini-fins to the rear of his body. The body narrows and ends at the end with long forked tail. Tuna are very fast swimmers and flexible, and some can swim at 43 miles per hour. In line can even retracted their thoracic and dorsal fins in the rear space can be further simplified.

Some scientists believe that the smaller fins on the back, even to reduce turbulence in the water. Another unusual thing about tuna is that instead of white meat, which is typical for most other species of tuna rose sport dark red muscle. The red color comes from a molecule called “myoglobin oxygen binding, and tuna have increased the size of this molecule in their bodies. Tunas have a wide range of environments in March to live because they can allow their body temperature to become higher than the water around them so that they can live in cold water most of the ocean.

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