Shark
in sentence
356 examples of Shark in a sentence
Western Australia has had a particular problem with
shark
attacks over the last three years, unfortunately and tragically culminating in five fatal
shark
attacks in a 10-month period during that time.
And so it's not surprising, perhaps, that in July of this year,
Shark
Attack Mitigation Systems in collaboration with the University of Western Australia Oceans Institute made an announcement which captured the attention of the worldwide media and of ocean users worldwide, and that was around the development of technology to mitigate or reduce the risk of
shark
attack based on the science of what sharks can see.
When we began this process, we were looking, it was about three years ago, and we'd just had the first two fatal
shark
attacks in Western Australia, and by chance, in a previous role, I happened to be having dinner with Harry Butler.
I didn't think about that much at the time, and it wasn't until the next three fatal
shark
attacks happened, and it caused me to think, maybe there's some merit to this idea.
So biologically, there are plenty of species that display banding or patterns, warning patterns, to either be cryptical in the water or warn against being attacked, not the least of which is the pilot fish which spends a big slab of its life around the business end of a
shark.
On the human side, Walter Starck, an oceanographer, has been painting his wetsuit since the 1970s, and anthropologically, Pacific island tribes painted themselves in bands in a sea snake ceremony to ward off the
shark
god.
I wanted to put some science to this anecdotal evidence, because if science could support this concept, then we might have at least part of the solution to
shark
attack right under our very nose.
To do that, I needed some experts in
shark
vision and
shark
neurology, and a worldwide search, again, led to the University of W.A. on the doorstep here, with the Oceans Institute.
So I called up Nathan, a little bit sheepishly, actually, about this idea that maybe we could use these patterns and shapes to produce a wetsuit to try and mitigate the risk of
shark
attack, and fortunately, he thought that was a good idea.
The first is that we mapped the characteristics, the physical characteristics of the eyes of the three main predatory sharks, so the great white, tiger and bull
shark.
And from there, we were able to pinpoint two key characteristics: what patterns and shapes would present the wearer as hidden or hard to make out in the water, cryptic, and what patterns and shapes might provide the greatest contrast but provide the greatest breakup of profile so that that person wasn't confused for
shark
prey or
shark
food.
So this takes that banding idea, takes that banding idea, it's highly visible, provides a highly disruptive profile, and is intended to prevent the
shark
from considering that you would be ordinary food, and potentially even create confusion for the
shark.
And testing to simulate a person in a wetsuit in the water with a predatory
shark
in a natural environment is actually a lot harder than you might think.
So we have to bait the rig, because we need to get the statistical number of samples through to get the scientific evidence, and by baiting the rig, we're obviously changing
shark
behavior.
The way we did that was to get a perforated drum which is full of bait, wrap it in a neoprene skin, and then run two stereo underwater cameras to watch how the
shark
actually engages with that rig.
And because we use stereo, we can capture all the statistics on how big the
shark
is, what angle it comes in at, how quickly it leaves, and what its behavior is in an empirical rather than a subjective way.
So here we've got a four-meter tiger
shark
engaging the black control rig, which it had encountered about a minute and a half before.
Now that exact same
shark
had engaged, or encountered this SAMS rig, which is the Elude SAMS rig, about eight minutes before, and spent six minutes circling it, hunting for it, looking for what it could smell and sense but not see, and this was the final engagement.
Great white sharks are more confident than the tigers, and here you see great white
shark
engaging a control rig, so a black neoprene wetsuit, and going straight to the bottom, coming up and engaging.
If you were to come from Iceland, your national dish is deep rotted
shark.
If you can see, it's a polar bear that's drowning and then it's also being eaten simultaneously by a lobster and a
shark.
And she's being eaten; there's a
shark.
You're not supposed to rip off the
shark
or the monster.
A
shark
attack on a Swedish person will get headlines for weeks in Sweden.
Plus, if there's a
shark
attack, why are they going to pick you over the 80 people in the water?"
Later, the Grand Duke of Tuscany had him dissect a
shark.
By finding one origin for
shark
teeth from two eras by stating natural laws ruling the present also ruled the past, Steno planted seeds for uniformitarianism, the idea that the past was shaped by processes observable today.
But what does it mean to the
shark?
And we looked in the literature, and nothing was known about this
shark'
s vision.
So I took this
shark
to eye specialist Ellis Loew at Cornell University, and we found out that this
shark
sees discretely and acutely in the blue-green interface, probably about 100 times better than we can see in the dark, but they only see blue-green.
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