Charles Darwin · every age

What was Charles Darwin doing at 26?

Boarded the Beagle at 22, published his big idea at 50

1. Sep 1835

   The Beagle reached the Galápagos Islands

   He noticed that mockingbirds differed from island to island. The finches came later.

   Source: en.wikipedia.org

Portrait: Photo: Maull & Fox (c. 1854), public domain, via Wikimedia Commons · source