beware of rampaging mice!

mice_runningTwo researchers have found that mice can detect higher carbon dioxide levels by using specialised neurons in their noses. Collaborative researchers Minmin Luo, from the National Institute of Biological Sciences, Beijing, and Peter Mombaerts, from the Rockefeller University, New York, find that intriguing.

Their study has been published in Science. The more CO2 the mice were exposed to, the more their behaviour changed. When given the choice between high and low CO2 concentrations, the mice avoided anything higher than 0.2 per cent. So as climate change causes atmospheric CO2 levels to rise, will mice go crazy?

Not so fast says Mombaerts. If the CO2 increases are gradual the mice might be able to adapt, but there is a posibility that mice could become more fearful or aggressive because the behavioural effect is still not known.
Newcastle Herald,(Australia), 21 Aug 2007 – screen copy held by this website