Can you please answer these questions 1. How did an understanding of the theory of evolution
enable Shubin to predict the age and type of sedimentary rock in which he would find Tiktaalik?
2. Why did Shubin look for fossils in Canada's north? kJo 3. It took five years of field work to
find Tiktaalik. What does this suggest about the nature of palaeontology? What challenges do
you think Shubin's team faced?
4. Some fish have primitive lungs. Do you think Tiktaalik had lungs in addition to gills? Why or
why not? Use the Internet and other sources to check your prediction. 5. Articles submitted to the
science journal Nature undergo a rigorous peer review process before being accepted. What is
the benefit of such a process? Why would scientists not publish their findings in journals that do
not require a review?