Darwin’s time as the HMS Beagle’s naturalist lead to his theory of Evolution by all of the above given statements.
Answer: Option D
Explanation:
During the voyage of Beagle’s Darwin was a naturalist. He observes many plants, animals, collect specimens of animals, plants, fossils. During the voyage he visited place like Galapagos, Callao-lima, Bahia, Rio-de Jeneiro, Montevideo, Falkland Islands, Cape Town, Cocos Island, and Hobart etc.
During this journey he observes the tropical rain-forest where new inhabitants (plants and animals) are found having different behavior. He also dug some fossils and compares them animal in earth surface and he found they are alike and their structure changes over certain time. After analyzing all these fact, he proposed ‘Theory of Evolution'.