Only humans understand death as the inevitable and final reality for all mortal beings no matter what we do.
This is hierarchical organization, none of which is seen in the Precambrian layers beneath.
Fossils are great; the more the better. Experience from spectacular discoveries assures us that no surprises will change Charles Darwin’s own cause for doubt.
Let the reader enjoy the 350+ word vocabulary of Clover, alleged to be the best talking parrot in the world.
The brain’s plasticity intrigues and puzzles researcher, and it also raises a larger issue.