Students Model Natural Selection
Year 10 Biology students have been studying the process of natural selection. Today they modelled the process of natural selection and the effect of camouflage on predation.
Toothpicks represented beetles of different colours that were spread out on two different coloured backgrounds. The girls acted as birds of prey and had to ‘pick off’ the beetles that were most obvious to them using toothpicks. The better-camouflaged beetles survived the predation better than the less camouflaged.
The pros and cons of modelling scientific concepts were discussed as well as how to increase reliability in data.