BLOGGER TEMPLATES AND TWITTER BACKGROUNDS »

Friday, February 19, 2010

Sea Turtle's Way of Life




Sea turtles are almost always submerged in water, and, therefore, have developed an anaerobic system of respiration. Although all sea turtles breathe air, under dire circumstances they may divert to anaerobic respiration for long periods of time. When surfacing to breathe, a sea turtle can quickly refill its lungs with a single explosive exhalation and rapid inhalation. Their large lungs have adapted to permit rapid exchange of oxygen and to avoid trapping gases during deep dives. However, turtles must emerge while breeding, given the extra level of activity.
The lifespan of sea turtles has been speculated at 80 years.It takes decades for sea turtles to reach sexual maturity. After mating at sea, adult female sea turtles return to land to nest at night. Different species of sea turtles exhibit various levels of
philopatry. In the extreme case, females return to the beach where they hatched. This can take place every two to four years in maturity. They make from one to eight nests per season.






Marine turtles are caught worldwide, although it is illegal to hunt most species in many countries.A great deal of intentional marine turtle harvests worldwide are for food.
Many parts of the world have long considered sea turtles to be fine dining.
Ancient Chinese texts dating to the fifth century B.C. describe sea turtles as exotic delicacies.Many coastal communities around the world depend on sea turtles as a source of protein, often harvesting several turtles at once and keeping them alive on their backs until needed. Coastal peoples gather turtle eggs for consumption.The Moche people of ancient Peru worshipped the sea and its animals. They often depicted sea turtles in their art.
Sea turtles enjoy immunity from the sting of the deadly
box jellyfish and regularly eat them, helping keep tropical beaches safe for humans.






Medusa Acabo

0 comments: