This is one the most striking quotes and can make such a big impact ! The differences in these animals may be more physical, but it still makes one realise that people are complex and the differences in these animals physical appearance refer to the differences in peoples individual personalities. 

In the world after school there are thousands, if not millions, of different types of jobs. One cannot expect children to succeed in these jobs if you only use one method to teach 30 different, unique, complex learners. Sure that is what university is for, but children should be given a chance to explore their individual interests before they go to university. And they should be given a fair chance to succeed.