Sharks
Sharks are any of the 340 species of fish that, together with the skates, rays, and chimeras, are sharply distinguished from the vast number of bony fish species by their cartilaginous skeletons. Sharks are very keen-sensed fishes, many species of which are able to hunt and eat nearly all the larger water animals in both shallow and deep seas. These two features account for their long evolutionary history. Many of the shark species living today are quite similar to abundant species that swam in seas of the Cretaceous period more than 100 million years ago. Sharks reveal great diversity in behavior and size. The whale shark is the largest shark and also the largest fish in the sea, measuring up to 15-m (49f) in length. The cookie-cutter shark measures less than 50 cm (19in) in length. Sharks are mainly marine fish found in all seas and are especially abundant in tropical and subtropical waters. Many types migrate up rivers. Sharks are best known as aggressive carnivores that even attack members of their own species. Two of the largest sharks-the basking shark and the whale shark-feed on plankton, which they strain from the water with gill rakers. Altogether sharks are very different from other animals because they all ha
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Some common words found in the essay are:
SHARKS Sharks, bony fish, sharks live, shark largest, sharks sharks, hunt eat nearly, eat nearly larger, shallow deep seas, shark largest fish, animals shallow deep, deep seas, animals shallow, shallow deep, hunt eat, eat nearly, able hunt,
Approximate Word count = 1122
Approximate Pages = 4 (250 words per page double spaced)
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