On 11/01/12 13:16, George Booth wrote:

Even the fish in the pond have not bothered with their usual winter
disappearance to the depths.


I guess that happens when the water temperature drops to the temperature
of maximum density, 4C, and the deeper water stays warm whilst the
surface cools.


--
Graham Davis, Bracknell, Berks. E-mail: change boy to man
Teach evolution, not creationism: http://evolutionnotcreationism.org.uk/