But you know they won’t be:
A new study mapping the evolutionary history of animals indicates that Earth’s first animal–a mysterious creature whose characteristics can only be inferred from fossils and studies of living animals–was probably significantly more complex than previously believed.
Among the study’s surprising findings is that the comb jelly split off from other animals and diverged onto its own evolutionary path before the sponge. This finding challenges the traditional view of the base of the tree of life, which honored the lowly sponge as the earliest diverging animal. “This was a complete shocker,” says Casey Dunn of Brown University. “So shocking that we initially thought something had gone very wrong.”
But even after Dunn’s team checked and rechecked their results and added more data to their study, their results still suggested that the comb jelly, which has tissues and a nervous system, split off from other animals before the tissue-less, nerve-less sponge.
This is the biggest problem with evolutionary biology in the class rooms. The simple tree of life graphs in the books are lies. Even many of the evidences given are lies. Scientists know it did not happen that way, and they learn more about it every day. Just like in this situation. The tree of life is very complicated and messed up. The real nuances of the model cannot be communicated to 5th graders and high schoolers.