Darwin set sail from Davenport, England on board the ship the Beagle
Cape Verde is a volcanic island containing very little plant life but still supporting animal life
the ship passed through the strait Le Maire later they anchored on the bay of good success when they were greeted by savages and later were followed by them as they sailed away
the beagle anchored at the mouth of the Rio negro.
Darwin decided to stay behind and travel to Buenos Aires by land during which he discovered the remains of nine ancient four legged mammals or quadrupeds. when he studied these remains he noted how some of them had characteristics of several different groups of animals we have today. another observation was that all of these different species were found within 200 yards of each other
Darwin noted how the land along the coast rose up in steppes and because of the sea shells on each steppe he figured out that the land raised up out of the sea over different periods of time and that between each period of raising there was a period of rest during which the sea ate off the land at the coast.
while anchored in the bay Darwin witnessed the eruption of a volcano he noted how the volcano constantly spewed molten lava an how dark objects were thrown into the air then exploded into color.
Darwin witnessed an earthquake he noted how when the earth shook it was like mans last stand point was taken away.