Here's a couple of paragraphs from the generally excellent book, The beak of the finch, by Jonathan Weiner.
Many paths lay open when the finches first arrived, and the smallest flights and trials of their descendants were rewarded. That is why they have traveled in more directions than any other creatures on the islands, that is why they have evolved farther and faster than any other creatures: because they got here early.
Our own line is now radiating farther, faster, and in more directions than any other single species in the history of the planet - and for a similar reason. We are the first creatures to arrive in the strange territory we now occupy. We stumbled into our new niche before any other creatures on the planet. We discovered it.
What's wrong with the idea conveyed in this quote?
(PS Don't get me wrong - I thoroughly enjoyed the book, & it's well-worth reading again. But still - that particular concept could be better-phrased...)