锘? The leatherback sea turtle could be the most amazing
animal on earth. Like the other remaining species of marine turtle
Trevor Cahill
Jersey , it left its four-footed land predecessors more than one
hundred ten million years ago, developed flippers, and populated the Seven
Seas---before there were Seven Seas.
Mother Earth was a very different
place way back then.
Although humans look around at the world and
imagine that the big mountains and long rivers we see today have always been
there, nothing could be farther from the truth.
For example, today's
mighty Himalayan Mountains were not mighty at all when turtles first entered the
oceans. Indeed, there would be no Himalayas for sixty five million more years.
Antarctica was connected to Australia when the earliest leatherbacks
took to the sea and would not uncouple from it for about thirty million more
generations of these sea animals.
South America was not far from West
Antarctica. Another 80,000,000 years would go by before Antarctica would turn
into the frigid continent we see.
The South Atlantic Ocean was still
forming. In fact, not only were there no Seven Seas way back then, there were
not seven continents
Travis Wood
Jersey , either, only two supercontinents.
This ancient
time spawned these ancient sea turtles.
When the ancestors of today's
leatherbacks evolved into sea dwellers, there were no birds in the sky, no
lions, tigers, or buffaloes because there were no birds or mammals at all on the
globet.
The mighty Tyrannosaurus Rex would not terrorize the planet for
about four hundred thousand centuries more. Yes, you read it correctly: 400,000
centuries.
Your biology teacher may have told you that dolphins and
whales originated from land animals and went to sea long ago. That is really
impressive! Except to a sea turtle. Why? Because leatherbacks had been swimming
the world's oceans for more than fifty million years before those mighty
creatures---which are closely related to hippopotamus---evolved, left the land,
and entered the sea
Starlin Castro
Jersey , as well.
These are the largest of all sea turtles
and can weigh nearly a ton, They were here many eons before the first dinosaur,
survived the greatest worldwide catastrophic extinction on earth, and
flourished. But, that spectacular ability to adapt is not why they are so
amazing.
Consider this: the world marveled , and deservedly so, at
Michael Phelps' unbelievable speed when he set a world record in the 200 meter
freestyle swim event in Beijing. But, in the time it took him to go that
distance, a huge leatherback, weighing about as much as the entire offensive
line of a professional football team
Sammy Sosa
Jersey , would pass the thousand meter mark---more than a third of
a mile farther than Michael.
In fact, this magnificent relic is listed
in the 1992 Guinness Book of World Records as the fastest reptile on earth!
It would be a fairer race if the world's fastest man ran alongside the
swimming turtle. At 100 meters, the race would be very close and maybe won by a
nose---by the human. At 400 meters, it'd be a blow-out---for the
turtle.
Not only does this ancient being swim five times the speed of the
fastest human on earth, it may also be the world's greatest long-distance
migrating creature. One of these giants was monitored by researchers migrating
13,000 miles---one way.
Besides its incredible speed and stamina, it is
the deepest diving sea turtle on the planet, regularly diving some 4,000 feet
deep into the ocean. To put that depth into perspective, today's nuclear attack
submarines are allowed to dive to a maximum normal operating depth of about
1
Munenori Kawasaki
Jersey ,600 feet because they'd crush under the sea pressure at
about 2,400 feet. Man's best technology and strongest metal and composite
materials are no match for the diving ability of a one hundred million year old
species.
There is also the incredible fact that leatherbacks are found
not only in all tropical and subtropical waters on earth but have been seen as
far north as the Arctic Circle, in Alaska, near Quebec, and Norway, and as far
south as the Cape of Good Hope and even below New Zealand, in waters as cold as
40F. Yet, although they are cold blooded reptiles, they remain nice and cozy
because they can maintain a body temperature as much as 32F (18C) higher than
the surrounding water.
Unfortunately, in the last 30 years
Miguel Montero
Jersey , man's destructive capacity and willingness to do so have
decimated the numbers of this magnificent creature. Between 1980 and 2005, the
number of leatherback sea turtles in Mexico declined 99% , a a disaster for this
species since that country had about two thirds of the world's total
leatherbacks.
Mexico should not be singled out because, all across the
globe, were collapsing. For example, just a few years ago 10,000 leatherbacks
nested in Malaysia each year. In 2008, there were two.
Today, there are
hundreds of conservation organizations, and more than 100 countries
Kris Bryant
Jersey , that are fighting to stem the decline of this magnificent
race but it remains to be seen if this most ancient of all creatures can survive
your generation and mine.
Somewhere, Angels are weeping.
Author's Resource Box
Victor C. Krumm lives in sunny Costa Rica and writes the popular Costa Rica
Vacations website. Check out the great Costa Rica Seven Wonders
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