Friday 10 December 2010

The physics of reindeer

We went to visit the reindeer herd near Aviemore whilst on holiday. They were introduced in the 1950s as someone from Sweden recognised that the habitat was suitable. We have met the wandering herd of females on the Cairngorm plateau before. The males are kept in pasture most of the year so that the breeding programme can be managed to prevent in-breeding. Notice the size of the feet - large area to reduce the pressure on the snow. A bit of physics. Apparently their hairs are hollow - trapping air because trapped air is a marvellous indicator. Think about double glazing!