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0. 64071604584.170998. 0. 2008 8528605184 14 3/26/2011. 2008 4686249984 14 3/26/2011. 2009 4698939922 13. 1979 9392799744 12 7/2/2011. 2009 8531963904 13. 2013. Directed by Griff Furst. With Colin Ferguson, Yancy Butler, Kirsty Mitchell, Kacey Clarke. Killer crocodiles and their offspring terrorize residents of a small community.

Lake Placid 3 (TV Movie 2. Edit. A game warden moves his family to Lake Placid, once the site of deadly crocodile attacks. Locals assure him the crocs are gone, but his mischievous young son finds a few baby crocs and begins feeding them. They quickly grow into very big adults and start attacking the game warden's family and nearby town. Written by. Anonymous.

Plot Summary Plot Synopsis. Taglines. Don't forget you're lunch! Pandemic Full Movie on this page.

Shark - Wikipedia. Sharks are a group of elasmobranchfish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade. Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalideugenedontidans.

Under this broader definition, the earliest known sharks date back to more than 4. Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whole. Since then, sharks have diversified into over 5. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 1. Rhincodon typus), the largest fish in the world, which reaches approximately 1.

Modern sharks began to appear about 100 million years ago. Fossil mackerel shark teeth date to the Early Cretaceous. One of the most recently evolved families is the. Hindi TV Serial Business News Online at Times of India. Read Latest Hindi Episode Business News and TV Serials and Channels Program Business News online at Times of India. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Easily share your publications and get.

Directed by Jeremy Wagener. With Jared Cohn, Zack Ward, Julie McCullough, Rachel True. A 'mockumentary' about David Moore, the filmmaker who first dreamed of "sharks.

Sharks are found in all seas and are common to depths of 2,0. They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can survive and be found in both seawater and freshwater.[2] Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have numerous sets of replaceable teeth.[3]Well- known species such as the great white shark, tiger shark, blue shark, mako shark, thresher shark, and hammerhead shark are apex predators—organisms at the top of their underwater food chain. Many shark populations are threatened by human activities. Etymology. Until the 1.

This is still evidential in several species termed "dogfish," or the porbeagle. The etymology of the word "shark" is uncertain, the most likely etymology states that the original sense of the word was that of "predator, one who preys on others" from the Dutch schurk, meaning "villain, scoundrel" (cf. A now disproven theory is that it derives from the Yucatec Maya word xok, pronounced 'shok'.[7] Evidence for this etymology came from the Oxford English Dictionary, which notes shark first came into use after Sir John Hawkins' sailors exhibited one in London in 1.

Caribbean Sea. However, the Middle English Dictionary records an isolated occurrence of the word shark (referring to a sea fish) in a letter written by Thomas Beckington in 1. New World etymology.[8]Evolution. Evidence for the existence of sharks dates from the Ordovician period, 4. Only scales have been recovered from the first sharks and not all paleontologists agree that these are from true sharks, suspecting that these scales are actually those of thelodont agnathans.[9] The oldest generally accepted shark scales are from about 4. Silurian period.[9] The first sharks looked very different from modern sharks.[1.

The majority of modern sharks can be traced back to around 1. Most fossils are of teeth, often in large numbers. Partial skeletons and even complete fossilized remains have been discovered. Estimates suggest that sharks grow tens of thousands of teeth over a lifetime, which explains the abundant fossils. The teeth consist of easily fossilized calcium phosphate, an apatite.

When a shark dies, the decomposing skeleton breaks up, scattering the apatite prisms. Preservation requires rapid burial in bottom sediments. Among the most ancient and primitive sharks is Cladoselache, from about 3. Paleozoic strata in Ohio, Kentucky, and Tennessee. At that point in Earth's history these rocks made up the soft bottom sediments of a large, shallow ocean, which stretched across much of North America.

Cladoselache was only about 1 metre (3. Its teeth had several pointed cusps, which wore down from use. Watch Mano Po 6: A Mother`S Love IMDB. From the small number of teeth found together, it is most likely that Cladoselache did not replace its teeth as regularly as modern sharks. Its caudal fins had a similar shape to the great white sharks and the pelagic shortfin and longfin makos.

The presence of whole fish arranged tail- first in their stomachs suggest that they were fast swimmers with great agility. Most fossil sharks from about 3. The Xenacanthida was almost exclusive to freshwater environments.[1. By the time this group became extinct about 2. The other group, the hybodonts, appeared about 3. The results of a 2.

Megalodon (top two, estimated maximum and conservative sizes) with the whale shark, great white shark, and a human for scale. Modern sharks began to appear about 1.

Fossil mackerel shark teeth date to the Early Cretaceous. One of the most recently evolved families is the hammerhead shark (family Sphyrnidae), which emerged in the Eocene.[1. The oldest white shark teeth date from 6. In early white shark evolution there are at least two lineages: one lineage is of white sharks with coarsely serrated teeth and it probably gave rise to the modern great white shark, and another lineage is of white sharks with finely serrated teeth. These sharks attained gigantic proportions and include the extinct megatoothed shark, C.

Like most extinct sharks, C. This giant shark reached a total length (TL) of more than 1. C. megalodon may have approached a maxima of 2. Paleontological evidence suggests that this shark was an active predator of large cetaceans.[1.

Taxonomy. Sharks belong to the superorder Selachimorpha in the subclass. Elasmobranchii in the class. Chondrichthyes. The Elasmobranchii also include rays and skates; the Chondrichthyes also include Chimaeras. It is currently thought that the sharks form a polyphyletic group: some sharks are more closely related to rays than they are to some other sharks.[1. The superorder Selachimorpha is divided into Galea (or Galeomorphii), and Squalea (or Squalomorphii).

The Galeans are the Heterodontiformes, Orectolobiformes, Lamniformes, and Carcharhiniformes. Lamnoids and Carcharhinoids are usually placed in one clade, but recent studies show the Lamnoids and Orectoloboids are a clade.

Some scientists now think that Heterodontoids may be Squalean. The Squaleans are divided into Hexanchoidei and Squalomorpha. The Hexanchoidei includes the Hexanchiformes and Chlamydoselachiformes. The Squalomorpha contains the Squaliformes and the Hypnosqualea. The Hypnosqualea may be invalid.

It includes the Squatiniformes, and the Pristorajea, which may also be invalid, but includes the Pristiophoriformes and the Batoidea.[1. There are more than 4.