Flukes are used to identify different whales. They are used to identify whales because every single fluke is unique to the whale. Scientists need this data in order to see the types of whales in each part of the ocean. Each fluke is different whether it be completely black, completely white, black with some white, some with scars, etc. The most difficult part of this lab was the fact that there were so many pictures. It was really difficult and frustrating if you're looking for a tail that is at the start of the packet and you miss it so then you're stuck looking until the end only to realize that the fluke match was on the second page. One way to definitely make it better, although the tails are only black and white, is by providing pictures in colors.