How many experiments have been conducted worldwide to test darwin's initial hypothesis regarding natural selection?

Hi there! To answer your question, there exists the same question in the internet and the answer is thousands of experiments have been conducted worldwide to test Darwin’s initial hypothesis regarding natural selection.  Almost all scientific findings today have been attributed to Darwin’s theory, thus they needed to conduct the scientific method to be able to come up with new learnings. 

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation:

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".