The most extraordinary thing about trying to piece together the missing links in the evolutionary story is that when you do find a missing link and put it in the story, you suddenly need all these other missing links to connect to the new discovery. The gaps and questions actually increase - it's extraordinary.
We only know a tiny proportion about the complexity of the natural world. Wherever you look, there are still things we donβt know about and donβt understand. [...] There are always new things to find out if you go looking for them.