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Ommatokoita elongata is a 30 mm (1.2 in) long pinkish-white parasitic copepod, frequently found permanently attached to the corneas of the Greenland shark and Pacific sleeper shark. [3] [4] [5] The parasites cause severe visual impairment, but it is thought that the sharks do not rely on keen eyesight for their survival. [4]
Greenland sharks have also been found with remains of moose, polar bear, horse, and reindeer (in one case an entire reindeer body) in their stomachs. [13] [26] [22] The Greenland shark is known to be a scavenger and is attracted by the smell of rotting meat in the water. The sharks have frequently been observed gathering around fishing boats. [13]
Shark teeth cannot be collected from just any type of rock. Any fossils, including fossil shark teeth, are preserved in sedimentary rocks after falling from their mouth. [13] The sediment that the teeth were found in is used to help determine the age of the shark tooth due to the fossilization process. [15]
The really dark shark teeth, Dunn said, are millions of years old and more commonly found. The lighter teeth, beige or pearly in color, fell out more recently.
Shelton, who has hunted sharks teeth and fossils for over thirty years frequently provides educational talks about the hobby at local museums runs the Myrtle Beach Shark Teeth Facebook page. Jan ...
A couple of tourists poking around in the sand found a prehistoric shark tooth the size of a human hand at Cape Lookout National Seashore, according to the National Park Service.. The tooth is all ...
The upper jaw teeth of the sleeper shark are spike-like, while the lower jaw teeth are oblique cusps and overlapping bases. This arrangement allows grasping and sawing of food too large to swallow. Pacific sleeper sharks have a short caudal fin , which allows them to store energy for fast and violent bursts of energy to catch prey.
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