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Sharks: Dangerous or Endangered? |
| Section: NATURAL SCIENCE / SCIENCE ESSAY |
| Author: Alessandro De Maddalena |
| Publication: The world & I online |
| Issue Date: 1/1/2004 |
| Size: 2,627 Words, 17,342 Characters |
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Mention the word sharks, and what goes through your mind? The movie Jaws? Ferocious giants of the sea ripping up helpless swimmers, surfers, and boaters? The word is even applied to people who engage in extortion, preying on others through deceptive practices.
Yes, sharks are predators that occupy the top layer of the marine food web, and many are large and powerful enough to be capable of harming a person. Even so, only certain species pose a definite danger to people who venture into their habitat, while most are inoffensive. On a worldwide scale, the number of shark attacks on humans amounts to about 100 per year, of which only 5 to 15 are fatal. In most cases, the attack ends after the initial contact and the shark does not kill or eat the victim.
By comparison, many more people ...
. . .
...ecosystems is in serious danger. It is incumbent on us to devise appropriate strategies to protect and restore the populations of these sea creatures.
On the Internet
NOAA Fisheries Shark Web Site
www.nmfs.noaa.gov/sharks
ReefQuest Centre for Shark Research
www.elasmo-research.org/index.html
Sharks: Florida Museum of Natural History
www.flmnh.ufl.edu/fish/Sharks/sharks.htm
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