Earth Science, C Block, McClellan
"World's Oldest Animal Life - 650,000,000 Years Old." World's Oldest Animal Life. N.p., n.d. Web. 08 Nov. 2015.
This article is about how scientists have discovered the oldest animal life found yet in Australia, these fossils predate other samples by about 70 million years. This changes the world’s views on the evolution of animal life entirely. The scientists, Adam Maloof and Catherine Rose, went to Australia originally to work on a project that concentrated on the severe ice age ended the Cryogenian period. When they first found the fossils they thought that they were just mud chips embedded in the rock, but the scientists then began to notice that the shapes of the mud chips in the rock repeated. They then realized that they had found some type of living thing and decided to analyze the organism. Analyzing the fossils found by the scientists was much more difficult than expected. Because early organism fossils are made of calcite rather than bone, x-rays did not work because x-rays make their pictures using densities, so the calcite skeletons did not show up in the pictures because calcite is also in rocks. The scientists had to figure out another way to evaluate the organism. The scientists ended up at Situ Studio, a Brooklyn-based design and digital fabrication studio; here they created a digital 3-dimesional model of the fossils. After looking at the models, the scientists found that they had discovered the oldest animal ever found.
This discovery is very important to society because it brings the evolution of animals back 70 million years, this is the equivalent of modern times beginning in the late Cretaceous Period. This is a huge breakthrough in the views of the scientific world on evolution, it also brings about new questions for the scientific world, as stated by Adam Maloof ‘“No one was expecting that we would find animals that lived before the ice age, and since animals probably did not evolve twice, we are suddenly confronted with the question of how a relative of these reef-dwelling animals survived the 'snowball Earth.”’. Also, this finding is meaningful because it brought a new method for analyzing sponge-like fossils into play. Without this fossil the scientists Adam Maloof and Catherine Rose would not have created the digital 3-dimesional model software technique that allowed them to view the fossil. The scientists even talk about refining the three-dimensional digital reconstruction technique to increase the efficiency of the process in the future. The article explains “This could have a significant impact on paleontology, Maloof said, enabling the analysis of myriad early fossils that are currently inaccessible to the tools of modern science”.
I thought the article was very well written, it was interesting and included lots of facts and evidence. I would have liked if the article had spoken more about how these fossils would affect the science world and what this finding meant in relation to what we know about evolution now. Also, I felt that in general they could have spoken more about the fossil and what the time period that it lived in was like. Otherwise this article was very good.