ABSTRACT

This was a different view to that of Lamarck (1783) who thought that what happened in one generation literally affected the next generation; for example giraffes might stretch their necks to get food and neck-stretching might become a skill learnt in one generation and that new skill was passed down to the next via genes. This is different to Darwin who suggested that it was just that the long-necked giraffes got enough food to survive and reproduce and pass on that long-necked trait while short-necked giraffes perished and did not reproduce. For Lamarck neck-stretching or colour changing capacities were developed and passed on, but for Darwin the genes and DNA in the moths or giraffes did not change, but rather, simply, the ones that best ‘fitted’ the environment survived and reproduced.