- Finding Your Inner Fish 1. Explain why the author and his colleagues chose to focus on 375 million year old rocks in their search for fossils. Be sure to include the types of rocks and their location during their paleontology work in 2004. The author and his colleagues specifically chose to focus on 375 million year old rocks in their search for fossils because this was the time frame that provided fish that would be useful to study from. The 385 million year old rocks provided fish that look
YOUR INNER FISH Chapter 1- Finding Your Inner Fish 1. They chose the time period of 375 million year old rocks because they thought that it was an ideal age to check the transition. They were only able to find fish found in 380 million year old rock and the animals with limbs in 365 million year old rocks. Sedimentary rocks are ideal because they are made due to the turns of the river, ocean and lakes. This is the place where fishes and animals are ideal to live and survive upon. Also the environment