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By Natasha Fraley
At Shape of Life, we present sponges as the first animals. But recently several scientists make a case for ctenophores (common name comb jelly) being the first animal. As of today scientists still don’t agree on the issue. This is an example of “science in action” where new research and technologies call into question long held science. This is basically how science works. The evolving nature of science will have a major influence on science teaching in the classroom.