extensively through the american continent, systematically capturing and collecting data.
His works were published in a huge volume called "Kosmos" in which he stated the principles of Biogeography and the scientific observation of Earth
He was one of the first people to propose that South America and Africa were once together
His brother Wilhem, who was a philosopher and linguist, often travelled with him studying indigenous languages
And there are lots of animals, plants and places (like a river, a bay, various mountains, cities, waterfalls, a glacier...)
called after him