ZSL Publishes Report Showing Great White Sharks Are Serial Killers

Mon, 6/22/2009 - 8:00 AM

By Victoria Picknell 

London, UK - What do great white sharks have in common with serial killers? Refined hunting skills, according to a paper published today in the Zoological Society of London’s Journal of Zoology.

A team of US-based researchers have found that sharks hunt in a highly focused fashion, just like serial criminals.

Using the same methods used in criminology, the authors demonstrate how geographic profiling, a mathematical technique usually used to hunt serial criminals, can be used to study the hunting patterns of great white sharks.

The authors observed the location of 340 shark attacks and used the data to locate the sharks' anchor point. Interestingly, the study also showed that younger sharks exhibited less focused search patterns and were less successful hunters, perhaps because larger sharks excluded them from the best areas. 

"Geographic profiling is an interesting new way to study patterns of animal foraging, and especially predation" says Dr Steven Le Comber, an expert on geographic profiling at the School of Biological and Chemical Sciences at Queen Mary, University of London. "Shark hunting patterns are extremely difficult to study and the work here will have important implications for our understanding of the ways in which predators hunt their prey." 

Notes 

The Journal of Zoology, published by the Zoological Society of London, is a leading scientific journal publishing hypothesis-driven papers that advance our knowledge of animals and their systems. For further information please visit http://www.wiley.com/bw/journal.asp?ref=0952-8369
 

(1) Geographic profiling was developed by former Canadian beat cop Kim Rossmo, now Professor of Criminal Justice at Texas State University, and head of the Centre for Geospatial Intelligence and Investigation. It uses the locations of a series of linked crimes (murder, rape or arson) to predict the location of a criminal's anchor point - usually a home or place of work. Doing this allows police to prioritise lists of suspects by concentrating on those living or working in certain areas. This is extremely useful, since in most investigations police will have too many, rather than too few, suspects: for example, police investigating the Yorkshire Ripper murders in the UK in the 1970s and 80s amassed a total of 268,000 names and 4.5 million vehicle registration numbers. Geographic profiling has been highly successful in criminology, and it is now routinely used by law enforcement agencies around the world, including the Royal Canadian Mounted Police, Bureau of Alcohol, Tobacco and Firearms (ATF) and Scotland Yard.
 

Founded in 1826, the Zoological Society of London (ZSL) is an international scientific, conservation and educational charity: our key role is the conservation of animals and their habitats. The Society runs ZSL London Zoo and ZSL Whipsnade Zoo, carries out scientific research at the Institute of Zoology and is actively involved in field conservation overseas. For further information please visit www.zsl.org.

To view London Zoo's web page on Zoo and Aquarium Visitor, go to:  http://www.zandavisitor.com/forumtopicdetail-709-ZSL_London_Zoo

Photo Credits:  Neil Hammerschlag - University of Miami



       
Share |
 

User login




Only active users can add comments.

Your Comments listed below have been added (Scroll down to add additional comments)


Irresponsible Board of Management Thu, 11/5/2009 - 9:20 PM — latino boy

Maybe , just maybe The Toronto Zoo Board Is In The Middle Of A Financial Crisis And There Is No Place To Go But To City Council like a wayward son go to Mom and Dad for more money...

Although it was made clear by Shelley Carroll (the City's Budget Chief) that the Toronto Zoo has to behave more financially responsible, perhaps the problem is that there is no place else to go. The $250 Million fund-raising plans are a pipe dream (especially after firing the Zoo Foundation), it is not possible to raise admission prices any longer (or face a significant drop in attendance) and the "junkets" (especially to China for the Giant Pandas) by members of the Zoo Board can not be cut significantly for any reason. In other words, there is no place to go but City Council. What a crock! The Toronto Zoo Board needs a reality check, as it has become clear that they do not understand the problems they are facing. Perhaps the thousands of free Zoo passes given to Councillors on the Zoo Board could be cut to zero, perhaps the Zoo Foundation could be re-instated, and perhaps a citizen's advisory committee could be formed to provide much-needed guidance to the existing members of the Board.

This is Proof positive

that citizens should have more direct say in the budget process. Line item veto by a citizen's budget committee might get the desired cuts we must attain. The citizens of Toronto should stand with one voice that we just won't allow a property tax increase this year.


By  Latinoboy in TORONTO


Ethyl Mercaptan Mon, 11/2/2009 - 2:27 PM — Mercaptan

I would be quite interested in any reference you might have to the presence of ethyl mercaptan in carrion.  Most literature indicates that dimethyl sulfide and methyl mercaptan are the sulfur containing entities involved.  I had also thought that vultures, like many carrion eating and inhabiting species (flies, etc) were attracted to the rather bad smell of the nitrogenous materials (cadaverine, putresceine, etc) produced during decomposition. 


Ant farms Mon, 9/28/2009 - 6:04 PM — factzoo

Very nice ant exhibit! I wrote a small ant farm post with a reference to your article.


Train Business Directory Available for Visitors Sun, 9/13/2009 - 12:15 PM — RanLoot

A "Train Business Directory" shows over 850 locations near all of the Portland MAX light rail at PortlandLightRail.net.


Happy Birthday, Boomer! Sat, 9/12/2009 - 7:26 PM — redapes

You are a great ambassador for your cousins in the wild, Boomer!

Orangutans are critically endangered because of rapid deforestation and the expansion of palm oil plantations.

If nothing is done to protect orangutans, they could be extinct in just a few years!

Your fans can visit the Orangutan Outreach website to make a difference!

Orangutan Outreach
http://redapes.org
Reach out and save the orangutans!
Facebook Cause: http://causes.com/redapes
 


Venemous snakes? Fri, 9/11/2009 - 9:18 AM — Kyle Bradley

What is it with people that want to exterminate venemous snakes? If they weren't an integral part of the food chain and ecosystem, they wouldn't be here! Evolution and natural selection has chosen them as survivors! The fact that they are "harmful" to humans is only a result of humans encroaching on their territories and habitats. Be mindful of your surroundings and situation and you can safely live with the so called "harmful" species that we share this planet with!


Local wildlife day Sat, 8/22/2009 - 5:41 PM — Devon eco lodges at Wheatland Farm

Good luck with the event. We have some fabulous wildlife in Devon that's really worth celebrating. We recently had a botanical survey of our small  Devon nature reserve, which recorded more than 180 species in about 3.5 acres. And even more amazing was the depth of local knowledge the visiting naturalists had to share - on everything from obscure moths to lichens.


Local wildlife day Fri, 8/21/2009 - 6:16 PM — Devon eco lodges at Wheatland Farm

Good luck with the event. We have some fabulous wildlife in Devon that's really worth celebrating. We recently had a botanical survey of our small  Devon nature reserve, which recorded more than 180 species in about 3.5 acres. And even more amazing was the depth of local knowledge the visiting naturalists had to share - on everything from obscure moths to lichens.


Sadly, a lack of common sense is the trend Sun, 8/9/2009 - 7:57 PM — eliewriter

What is sad to me is the lack of common sense regarding venomous snakes that seems to becoming more commonplace.

It has become trendy for government agencies to defend venomous snakes, saying they kill rodents, etc., but non-venomous snakes also kill rodents. I have not heard one logical argument as to what a venomous snake contributes to an ecosystem that a non-venomous snake doesn't.

Any non-biased biologist can affirm species extinction has always happened naturally. It's common sense to kill a venomous snake, rather than let it continue breeding and increase the potential for harm.

The unfortunate consequence of naturalists defending venomous snakes is they make them appear so necessary and harmless that both people and agencies--hospitals, for example--do not expect or prepare for snake encounters.

It's doubtful that many hospitals near the snakes stock the expensive antivenin. Governments should help fund snakebite treatment rather than fund snake protection.


Skype Usage Fri, 8/7/2009 - 5:02 PM — Shawn

Very cool and novel way to use Skype. Glad to see that people are thinking outside the box with its collaborative application. If it's not too late, you may want to submit this to Skype as a good use of their software for the Skype in business contest they're running.

Shawn
OnState Communications


Word Oceans Day - June 8 Thu, 6/4/2009 - 11:58 AM — The Ocean Project

And don't forget to "Wear Blue and Tell Two"
  

Another great way to celebrate World Oceans Day is to wear blue in honor of the ocean and tell people two things they likely don't know about the ocean and two ways they can take action. For more Information check out this website: 

WorldOceansDay

 



Subscribe to our eNewsletter

© 2009 Zoo and Aquarium Visitor. All rights reserved.