Title: Myths about Sharks
1Myths about Sharks
2Myth Sharks eat Humans
- Fact Most sharks do like meat but fish, squid,
seal, porpoise, or whale make a sharks perfect
meal. Some sharks, like the giant whale and
basking sharks, only eat tiny plankton. Some
sharks can go days or weeks without eating at
all. Contrary to public perception, sharks attack
less than a hundred people a year on average.
Often the attacks are accidental and are rarely
fatal. In fact, more people are killed each year
by dogs, lightning, and even falling soda
machines and coconuts than by shark attacks!
3Myth Shark Attacks are Common
- Fact In the Us there is only 1 fatal shark
attack per year, whereas humans kill over 100
million sharks per year. - Fact a person's chance of getting attacked by a
shark is 1 in 11.5 million, and a person's chance
of getting killed by a shark is 1 in 264.1
million.
4Myth All sharks species attack humans
- Fact Of the more then 350 shark species, about
80 percent are unable to hurt people or rarely
encounter people. - the great white, tiger, bull and the oceanic
whitetip, are the only Species that usually
attack.
5Shark Safety
- Avoid the water at dawn, dusk, or night, when
sharks tend to feed. - Avoid areas where sharks generally locate
themselves, such as murky waters and steep
drop-offs. - Don't swim alone, always be near a group of
people, and if possible, avoid being at the edge
of the group. - Obey instructions from lifeguards and other
authority. - It is known that when dolphins are seen, sharks
are usually nearby.
6Shark Finning
- Sharks are being driven to the brink of
extinction due to a huge increase in demand for
their fins over the last 20 years. - The practice of Shark Finning is an extremely
cruel one, where the animals are caught, their
fins are cut off and they are thrown back to sea
for a slow, painful death.
7Ways to Help Sharks
- don't eat shark fin soup! Talk to your friends
about shark fin soup and remember Friends don't
let friends eat shark fin soup! - Don't patronize restaurants that serve the dish.
Very often people are unaware of the effect that
their eating habits have on the environment. - If you see any of the typical "man bitten by
shark" news items on TV, contact the TV station
and ask them to produce a news item about shark
finning. Remember - only about 10 people a year
are killed by sharks, but 3 sharks are killed
every second by humans.
8Myth Sharks are Plentiful
- Fact Many shark species are endangered because
of pollution, loss of habitat, and excessive
fishing in their environments. Furthermore, the
loss of sharks imperils many ocean ecosystems
since sharks play a key role in culling sick
animals and keeping other populations in check.
9Myth Sharks Need to Keep moving to breathe
- Fact All sharks do need water moving over their
gills to breathe, but some species can pump water
over their gills by opening and closing their
mouths while resting.
10Myth All sharks can smell Blood from Miles away
- Fact Some sharks do have a highly developed
sense of smell, which helps them hunt in the dark
and detect their prey. Other sharks dont depend
on their sense of smell for foraging. All Sharks
use the Ampullae of Lorenzini nodes on their
noses to detect the electromagnetic fields that
all living things produce.
11Myth Sharks Have poor vision
- Fact Sharks' eyes, which are equipped to
distinguish colors, employ a lens up to seven
times as powerful as a human's, and some shark
species can detect a light that is as much as ten
times dimmer than the dimmest light the average
person can see.
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13A diver with a huge, Docile Whale Shark
ampullae of lorenzini on a sharks snout
14Cut out images on two previous pages, and display
next to matching info sheets Do not print this
sheet or the following Sheets.
Created and Designed by Bonnie
Sizer Bonnie.sizer_at_gmail.com Resident Assistant
Colorado State University
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