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A new science for a new climate
At first glance it's hard to imagine how the proliferation of human activity upon the environment has been a major factor in climate change given that climate change alone is nothing new. Over two million years the earth's history has seen...
Conmathematics (Conceptual Mathematics) : The Superultramodern Mathematics (SM)
The term Conmathematics [ invented by Kedar Joshi (b.1979), Cambridge (England), i.e. myself ] means Conceptual Mathematics. It is a meta - mathematical system that defines the structure of Superultramodern Mathematical Science. (Conmathematics...
I Challenge the 'experts'
GREAT WHITE BROTHERHOOD OF MASTER CRAFTSMEN: What the nature of 'mystery schools' was before Tuthmosis re-organized them (25) is hard to say. The claims of people within the Masons are challenged by many scholars. In reading the work of Conor...
Knowledge Moves
‘Knowledge comes from, and is drawn into, different organisational structures. At the same time, the notion that knowledge travels… Invites one to reconstruct communities in its wake, tracing connections after the fact.’ (Strathern 2004: 15). We...
The future of the Human Species - Part 2:Where next?
Many scientists are currently exploring the idea of going to live on Mars. Mars is the nearest planet to Earth and scientists actually think that the red planet resembled our Earth some million years ago. Some other scientists from the NASA Ames...
 
Mosquitoes like my blood

Here in Mauritius, mosquitoes are in paradise. The male mosquitoes have all the fruits they’ll ever dream of – god knows whether they actually dream – all year long while the female mosquitoes can choose from a numerous number of tourists to feed on.

It is of no surprise that tourists get bitten more than we, locals do. And the reaction which occurs on the tourists’ skin is quiet unusual to me. A large red swelling develops. It is about twice the size that the one which would have formed on my skin if I was to get bitten. Apparently the bite that a tourist receives is also more irritant. In my opinion, this is because foreigners are not as used to get mosquito bites than Mauritians do. But one thing is for sire though: some people do get bitten more than others.

Why is this so? Or rather, why are some people bitten less? James Logan, a research student at the Biotechnology and Biological Sciences Research Council (BBSRC) has found that some people give off ‘masking’ odours that prevent mosquitoes from detecting them. Another study, done earlier by Professor John Pickett and his team, showed that the number of flies circulating around


a herd depended on certain cows being present. Professor Pickett and his team discovered that unattractive – to mosquitoes at least - individuals gave out different chemical signals from other cows. To be sure about this fact, the unattractive cows were removed and the number of flies bothering the herd did indeed increase. These ‘ordinary’ cows had not been camouflaged by the unattractive cows’ special ‘masking’ odour and therefore the flies were attracted to the ‘ordinary’ cows.

After some other experiments, it was concluded that the famous ‘masking’ odours were acting as repellents or as a cover up. This finding could lead to a new type of insect repellent. These would be both safer and more effective.

Next time you get bitten, just think that the mosquitoes are not attracted by your ‘sweet’ blood but by your own odour.

About the Author

Khalil A.Cassimally is the editor in chief of Astronomy Journal and Astronomy Journal Ezine. He is also the co-founder of the RCPL Astronomy Club.
He is currently Senior Columnist at BackWash.com and Columnist for bbc.co.uk h2g2 The Post where he writes 'Not Scientific Science' column.

 

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