evolutionary tree造句怎么写

Scientists already knew that the creatures, which resemble underwater hedgehogs, are the only invertebrates( animals without backbones) on the human branch of the evolutionary tree.

Conclusion: S1 segment of new isolated reovirus is remarkably different from that of other known strains, and it might belong to an independent branch of serotype 2 reovirus in evolutionary tree.

When we look at the so-called evolutionary tree, we're up on the upper right-hand corner with the animals.

As a result, the structure of that evolutionary tree is very unstable and can flip around.

For instance, I know chimpanzees have demonstrated abstract thought. But baboons are on a whole different limb of the evolutionary tree.