Answer :
When Darwin saw fossils that seemed similar to modern sloths, he thought that the organisms might be related. This observation led him to consider the idea of evolution and common ancestry. Darwin proposed that these similarities between ancient and modern organisms could be explained by the concept of descent with modification, where species change over time through natural selection. By recognizing these similarities in fossils, Darwin laid the groundwork for his theory of evolution, which revolutionized our understanding of the diversity of life on Earth.
In conclusion, Darwin did not think it was a coincidence or that the fossils were exactly the same. Instead, he believed that the similarities he observed indicated a relationship and a shared evolutionary history between different species, like the ancient sloths and their modern counterparts.
