Ian Bach

Viewing conflicts through the eye of Counterinsurgency COIN – Since 2007

Turns out some dinosaurs could swim

This was an article I found mentioned in the Kurdish online News magazine, in the science – Tech section. I have the actual Arabic to english translation from the Kurdish news source in the comments section of the previous article. Ian Bach

POSTED: 10:46 a.m. EDT, May 25, 2007

WASHINGTON (Reuters) — Fossilized foot marks left by a big meat-eater on a lake bed in northern Spain 125 million years ago provide strong evidence that at least some dinosaurs were good swimmers, scientists said on Thursday.

Dinosaurs ruled the land from about 230 million years ago to 65 million years ago. But how they did in the water has been less clear.

There were numerous huge, fully marine reptiles living at the same time, including the plesiosaurs and ichthyosaurs, but they were not dinosaurs and in fact were only very distantly related to them.

Writing in the journal Geology, researchers led by Loic Costeur of the Universite de Nantes in France described tracks fossilized in sandstone that were left as a dinosaur swam in water roughly 10.5 feet deep, scratching the lake bottom with clawed feet.

“The animal used a pelvic paddle motion, much like living aquatic birds,” Costeur said by e-mail.

Twelve “swim tracks” over a stretch of about 50 feet included long and slender sets of grooves. Fossilized ripple marks at the site suggested the dinosaur was swimming against a current whiling trying to maintain a straight path, the researchers said.

The researchers said the shape and nature of the tracks indicated they were left by a large bipedal theropod dinosaur and not a big crocodile even though these were around at the time. Theropods are the familiar big carnivores like the North American dinosaurs Tyrannosaurus and Allosaurus.

Scientists have been seeking evidence that dinosaurs — like today’s large mammals such as elephants and tigers — were capable of swimming when circumstances demanded, like hunting in wet ecosystems, crossing rivers or escaping floods.

Previously discovered fossils showed swimming tracks apparently left by other dinosaurs such as sauropods — long-necked animals like Diplodocus — and duckbilled dinosaurs. But some of these have been disputed and were not as revealing as the new ones.

The new tracks provided the first definitive evidence of an active swimming behavior in dinosaurs and are the best record of swimming by theropods, researchers said.

The finding also extends the range of ideas about dinosaur behavior, Costeur added, including whether some thrived in aquatic environments.

The tracks were discovered three years ago in the Spanish province of La Rioja, Costeur said.

“The excellent preservation of these tracks provides an invaluable opportunity for biomechanical modeling in order to improve our understanding of dinosaur swimming ability and physiology,” the researchers wrote.

Some birds, which scientists believe descended from small feathered dinosaurs roughly 150 million years ago, also were highly adept at swimming during the age of dinosaurs, including the diving bird Hesperornis.

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About Ian Bach

Independent Online Terrorist Hunter I teach people how to hunt down and shut down the Bad guys web sites. I also teach about the various countries and cultures. Like most cases it is a small group of bsd eggs that in this case call themselves Muslims but in actual fact they are more like how KKK call themselves ",True Christisians". But in both cases / groups they preach a perverted and twisted view a religion. In the case of ISIS, all Qaeda, al Nusra, and the rest of the terrorists who claim to be true Muslims most of these groups follow the Wahhabi teachings. They are almost all Sunni and their goal is global domination. Yet they must be very bad at math and history. Since most Muslims prefer a separation of church and state and also mist are against Shari's Law. Esp the twisted and overly exaggerated form of Sharia Law that the Wahhabi and other bad guys use. I have studied terrorism, insurgencies, and the best tried and proven methods that work to fight terrorism. My Blogs have many links and articles that can show you who are the best and most knowledgeable people in the fields or counterinsurgency and counter terrorism. When I find great practitioner's I always listen to them to find out who they learned from and who they respect and admire. Thus I am always learning new stuff from the best and most successful in their fields of knoeledge. I strive to be an open and ethical source of information, I have met many awesome, kind, caring, and loving wonderful people many who I am close friends with now from Afghanistan, Iraq, Syria, Turkey, Iran, and many from S.E. Asia which also has a high percent of their populations that are Muslim.We must always strive to be aware people are not any one particular religion via that's what they chose to be, instead most people are a particular religion because that's what their parents and/or county is. I was raised Catholic but because I became Interested in magic ,(illusion - smoke n mirrors) and science which lead me to study many religions, and I would call myself an atheist. Yet sometimes when I lose my keys ZI find myself praying "Hail Marys" and a few "Our Fathers" which most always aides me in finding my keys. My belief is that if I just frantically look around for my krys, good luck it takes me for ever. But by saying these prayers it is like s sort of meditation and my mind becomes more calm, which is why it helps my find my keys.

One comment on “Turns out some dinosaurs could swim

  1. Ian Bach
    June 6, 2007

    FRON ANON – Some of the best dino tracks in the world are located not to far from Fort Hood, Texas!! I’m NOT kidding!!

    Tuesday May 29, 2007 – 02:43am (CDT)

    Like

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This entry was posted on May 28, 2007 by in Uncategorized.
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