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Ideograms - Sharks Teeth - Temporal Spirit (File)


Download Ideograms - Sharks Teeth - Temporal Spirit (File)
2013
Label: Not On Label (Sharks Teeth Self-released) - none • Format: 33x, File FLAC • Country: US • Genre: Electronic • Style: Ambient, Experimental

Cook Acta Palaeontologica Polonica. Alcheringa: An Australasian Journal of Palaeontology. Ogg and L. Hinnov The Geologic Time Scale Bulletin of the Geological Society of Denmark. Vandenberghe; F. Hilgen; R. Speijer The Geologic Time Scale : — Geologija in Slovenian. Catalogue of the fossil fishes in the British Museum Natural History. British Museum. Journal of Paleontology. Imprimerie de Petitpierre et Prince.

Recherches sur les poissons fossiles in French. Museum of Comparative Zoology. Geological Survey of Belgium. Palaeontographica in German. Retrieved 31 March Palaeovertebrata in French. Moody; P. Sutcliffe Cretaceous Research. Palaeontographica Abteilung A in French. Ebersole; Dana J. Ehret Journal of Vertebrate Paleontology. Fossils of the Harrana Fauna and the Adjacent Areas.

Retrieved 14 May Bibcode : PLoSO.. The primary use of the caudal fin is to provide a "push" while the shark swims. The upper lobe of the caudal fin produces the most amount of the push, and usually forces the shark downwards. The pectoral fins and the shape of the body like an airfoil work together to counter this force. The strong, non-lunate caudal fin in most benthic shark species allows the shark to swim close to the seabed such as the nurse shark.

However, the fastest swimming sharks such as the mako sharks tend to have lunate-shaped crescent-shaped caudal fins. Sharks have keen olfactory sense organs in the short duct between the front and back nasal openings. They can detect blood from miles away: as little as one part per million of blood in sea water may be enough. Sharks have the ability to determine the direction of a given scent based on the timing of scent detection in each nostril.

They are more attracted to the chemicals found in the intestines of many species, and as a result often linger near or in sewage outfalls. Some species, such as nurse sharks , have external barbels that greatly increase their ability to sense prey. Shark eyes are similar to the eyes of other vertebrates , including similar lenses , corneas and retinas. Their eyesight is well adapted to the marine environment. They can contract and dilate their pupils , like humans, something no teleost fish can do.

A tissue behind the retina reflects light back, thereby increasing sight in darker waters. Sharks have tiny holes all over the shark's snout, especially between the eye and the tip of the snout. In them are nerve receptors which are called the ampullae of Lorenzini.

Animals in the water give off electricity: every time an animal's heart beats or it moves, tiny currents of electricity are made. These tiny electric currents make signals that travel through water and get sensed. Sharks may use this sense when they catch their prey, even more than they use their sight. Although it is hard to test sharks' hearing, they may have a sharp sense of hearing and can possibly hear prey many miles away. The lateral line detects changes in water pressure.

It is open to the environment by a line of pores. This and the sound-detecting organs are grouped together as the 'acoustico-lateralis system', because they have a common origin. In bony fish and tetrapods the external opening into the inner ear has been lost. This system is found in other fish as well.

It detects motion or vibrations in water. Just a few million years ago, a giant shark called Megalodon swam in the seas. It was 18 meters long, twice as long as the closely-related great white shark, and it ate whales. Megalodon died out 1. Much of what we understand about prehistoric sharks comes from the study of their fossils. While sharks have skeletons made of soft cartilage that can fall apart before fossilizing, their teeth are harder and easily fossilized. Prehistoric sharks, like their modern descendants, would grow and shed many thousands of teeth over their lifetime.

For this reason shark teeth are one of the most common fossils. Pups are born with a full set of teeth, and are capable of taking care of themselves.

Once born, they quickly swim away from their mothers, who sometimes feed on the pups. Litters vary from one or two pups great white shark to one hundred pups blue shark and whale shark. Some sharks are oviparous , laying their eggs in the water.

Shark eggs sometimes called "mermaid's purses" are covered by a tough, leathery membrane. Most sharks are ovoviviparous , meaning the eggs hatch inside the female's body, with the babies developing within the mother, but there is no placenta to nourish the pups. Instead the young feed on the egg's yolk.

The pups eat any unfertilized eggs and sometimes each other. Very few pups in a litter survive until birth due to this form of sibling cannibalism. Great white sharks , mako sharks , nurse sharks , tiger sharks , and sand tiger sharks give birth this way.

Vector shark Silhouettes. Tags: shark , underwater, great, reef, animal, sea, water, fish, mouth, ocean, danger, teeth , dangerous, isolated, shark s, diving, great white shark. Set Of shark Vectors.

Tags: shark , isolated, aquatic, kill, jaw, tail, fin, aggression, saw shark , swim, bite, underwater, teeth , grey, fear, furious, dangerous, blue, predator, horror, mouth, death, hunt, sea, deadly, danger, wild, hammerhead, fish, scary, animal, great white shark , shark silhouette, sea life.

Great White shark Vectors. Tags: predator, saw shark , scary, ocean, isolated, jaw, kill, sea, shark , underwater, water, wild, teeth , swim, tail, danger, dangerous, deadly, animal, bite, death, grey, great, fear, fin, fish, furious, aggression, great white shark.



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8 Comments

  1. Gujin Permalink
    Jan 13,  · Temporal Spirit ((with Robbie Plackemeier from Rachel)) Ideograms. More by Sharks' Teeth. It Transfers & Grows While the Sun Sets on My Screen Ethical Consumption - EP She Teaches Art - Single.
    Reply
  2. Arashira Permalink
    Check out Temporal Spirit ((With Robbie Plackemeier From Rachel)) by Sharks' Teeth on Amazon Music. Stream ad-free or purchase CD's and MP3s now on payexchange.net
    Reply
  3. Dagal Permalink
    Fossil shark teeth, the most collected fossil in the world, are the most common fossil found in the neighboring phosphate mine. Shark teeth range in size from microscopic to 6+ inches! To date, nearly 50 species of sharks have been noted in the Lee Creek faunal record.
    Reply
  4. Fekazahn Permalink
    Dec 09,  · Shark teeth that are found in areas that contain iron oxide, such as parts of New Jersey, tend to have an orange or red coloring. Shark teeth found in areas that contain a lot of phosphate, such as Venice Beach, Florida, tend to be black, as Views: K.
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  5. Samugal Permalink
    Shark Teeth Symbolism and Meanings. As a side note, shark teeth have long been a symbol of strength and manhood. Sailors and surfers often wear them for good luck and protection from drowning. In the Middle Ages people donned a shark tooth to protect them from poison in foods and beverages, which could easily translate into safeguarding us from.
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  6. Nikokinos Permalink
    Fossil shark teeth are often fairly common in the fossil record because sharks constantly replace their work teeth during their lifetime and they preserve well. We carry a wide selection of authentic fossil shark teeth for sale in many species, sizes and quality ranges. We don't sell modern day shark teeth or reproductions, just the real thing.
    Reply
  7. Bakree Permalink
    Some facts about Shark Teeth. Scientifically it is proved that shark teeth are not attached to the gums. Sharks lose at least one tooth per week because the teeth may become stuck in prey and forced out and have 15 rows of teeth in each jaw. The bull shark has 50 rows of teeth, teeth are popularly found in beach treasures.
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  8. Kishura Permalink
    Nov 08,  · hello everyone. i have used elasmo as a great site for shark teeth and i have a book by joe cocke called "fossil shark teeth of the world". while elasmo is a great site, i enjoy flipping through books and i find the joe cocke book good, but limited to the amount of teeth shown. are there any other shark tooth identification guides that you are using that have more .
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