Darwin observed fossils of glyptodonts, which are now extinct. Living armadillos are the only animals remaining on Earth that are similar to glyptodonts. Armadillos live in the same places that glyptodonts lived.
What did Darwin most likely conclude about the two types of animals?
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Answer:
When he discovered these fossils they was the first large mammal fossils he had found. Such fossil were hardly known at this time. The glyptodon fossils (and a number of other extinct mammal fossils) he discovered in Punta Alta, Argentina in Sept and Oct 1832 allowed him to make the connection between the modern armadillos with the much larger prehistoric glyptodonts he found in the cliffs. Just a few days before he had eaten roasted armadillos with the gauchos in Bahia Blanca. He said that, ” … cooked without their cases the (armadillos) taste and look like duck.”
Here is the fossil.
He thought that these deposits with the fossils there were not that old. This forced him to conclude that these related species had changed through time. In other words there was a process that connected fossils of extinct species to modern relatives. In November, he got the 2nd volume of Lyell’s book, Principles of Geology, that was mailed to him in Montevideo. This book gave a strong argument for the great age of the earth with slow steady changes. These ideas added to the idea that slow changes happen in animals and plants too. It rejected evolution but this seemed to push Darwin’s ideas forward.
Explanation:
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