Friday, October 17, 2008

Leatherback turtles


Please take a look at this.

The leatherback turtle has survived for more than a hundred million years,
but is now facing extinction.
Recent estimates of numbers show that this species is declining precipitously throughout its range,
particularly in the Pacific over the last twenty years:
as few as 2,300 adult females now remain,
making the Pacific leatherback the world's most
endangered marine turtle population.

The leatherback turtle is the largest marine turtle and one of the largest living reptiles. Leatherbacks are one of the most migratory of all marine turtle species, making both trans-Atlantic and trans-Pacific crossings.
They are easily distinguished by their carapace, which is leathery, not hard as in other turtles, and by their long front flippers.
Leatherbacks have a unique system of blood supply to their bones and cartilage.
This enables their body temperature to stay several degrees above the water temperature and allows them to tolerate cold water, rather like a mammal.
They can dive to depths of up to 1,200m, much deeper than any other marine turtle.

You may ask me " Why is this species important? "
And the answer is :

As a major jellyfish predator,
the leatherback turtle provides natural ecological control of jellyfish populations.
Overabundance of jellyfish may reduce fish populations as jellyfish
can feed on fish larvae and reduce population growth of commercially important fish.
Hence, the presence of leatherback turtles benefits fish, fisheries and people.

For more information visit : WWF


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