Question

Your choice: some interesting facts given about Darwin in his experiences on the Beagle, tortoises, etc:

Answer 1

• Charles Darwin was an England naturalist who was born in February 12 1809.
• Darwin traveled by HMS beagle. the sea left on December 27 1831 and returned on October 2 1836
• he traveled Australia South America South Africa and Galapagos Island
• in his experience of voyage he encountered some facts that are.
• 1)enormous enormous rate of producing in some animals. and constant number of animals of a species which led to him the conclusion  struggle for existence.
• 2) struggle struggle for existence and inheritable variation led to the conclusion of that survival of the fittest or natural selection
• 3) survival for the fittest and continuous environmental changes led him to the conclusion that continuous natural selection leading to evolution of new species

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​​​​darwinism or theory of natural selection was proposed jointly by Charles Darwin and AR Whitaker. and the theory was later explained by Darwin in his book on the "origin of species" by the means of natural selection.

during his journey he visited Galapagos Island which is archipelago of 13 major Islands and hundreds of smaller Islands and is home to some of unique specimens searches iguana, giant tortoise ,fur seals, sharks and rays and many species of finches.

he he spent 5 weeks on Galapagos island he realized that different Islands of the the archipelago are same types but were home to different Species which were adapted to their environment

Darwin studied plants and animals of Galapagos island situated near South America. 20 types of finches which were evolved from the original species of seed eating finches. related species of this were also found in South America he concluded that there is a probability of some member of the species where migrated to Galapagos island and in time they have evolved into different species to better adopt in the environment .it is an example of adaptive radiation

he also mate giant tortoise on many islands of Galapagos Island.after visiting the islands he realized that each Island had its own but slightly different tortoises. there is species complex which is an example of adaptive radiation resulted from diversification due to new food source in ecosystem.