He had the opportunity to embark on a voyage around the world aboard the HMS Bea

He had the opportunity to embark on a voyage around the world aboard the HMS Beagle. during this trip, which lasted 5 years, Darwin was able to observe and study a great variety of animal and plant species in different parts of the world.. It was during this trip that Darwin began to question the traditional idea that species were fixed and immutable., as proposed by the theory of divine creation. instead, began to develop the idea that species could change and evolve over time. Back in England, Darwin spent more than 20 years gathering evidence and refining his theory of evolution by natural selection.. Finally, in 1859, published his most famous work: "The origin of species", in which he explained in detail his revolutionary theory. Darwin's theory proposed that species evolve through a process of natural selection., where the fittest individuals survive and reproduce, thus transmitting its characteristics to the following generations. This idea profoundly challenged the religious beliefs of the time and generated a great scientific and social debate..