Scientists are putting their heads together to find answers to questions that are usually asked by kids who go to the zoo – questions like why elephants have trunks, why leopard have spots, why zebras have stripes etcetera. The idea was suggested for the first time in a meeting of scientists at the University of California, Santa Cruz in April 2009. It is related to the DNAs and scientists are determined to get to the root of evolution. They would be working on mapping the genomes of around 10,000 species of vertebrates. The intention is to arrive at the process of reconstruction of our biological past – that would help understand how the complex organisms like us humans came about. The study would concentrate on the internal organs of humans and other species of vertebrates and on comparisons between which of these have changed and which have not over a passage of time. These would throw light on the complex mechanisms involved for the birth of species and their survival.