He waited more than 20 years to publish his groundbreaking theory on evolution.

The HMS Beagle's five-year circumnavigation of the globe, which ended in 1836, gave Darwin crucial material that he used to construct his theory of evolution and natural selection. Darwin did not publicly announce his theory of evolution until 1858, when he did so in conjunction with British naturalist Alfred Russel Wallace, who was about to do so with a concept that was similar to Darwin's. This was due to Darwin's concerns regarding the public and ecclesiastical acceptance of his profoundly radical idea.

On the Origin of Species was a book written by Charles Darwin that was published in 1859. He provided a natural selection-based theory of evolution in it. In other words, creatures that are better adapted to their environment—including plants, animals, and people—will live longer and generate more offspring. In essence, the modern human shape has not always been the same. To adapt to our environment, we have evolved.

It has been commonly reported that Darwin was aware he would be at the heart of a conflict between religion and science once he published his results. The idea that humans descended from a creature that resembled a monkey would never be accepted by those who believe in God. People held this theory for more than a century as to why Darwin took 23 years longer than necessary to present his findings. So why did Darwin postpone publishing his discoveries for so long? Let's look at it.