The theory of evolution does not propose that humans evolved from monkeys. Instead, it suggests that humans and monkeys share a common ancestor that lived millions of years ago. The evidence for evolution, including our common ancestry with other primates, comes from multiple sources across various scientific disciplines. Here are some of the key lines of evidence:
Fossil Record: The fossil record provides a wealth of evidence for the evolution of life on Earth. Fossils of extinct species, including early primates, have been discovered and meticulously studied, revealing a sequence of organisms with transitional features that link different groups together.
Comparative Anatomy: Comparative anatomy involves studying the similarities and differences in the anatomical structures of different organisms. By comparing the skeletal structures, organs, and other features of humans, monkeys, and other primates, scientists have identified numerous shared characteristics that suggest a common ancestry.
Genetics: The study of genetics has provided compelling evidence for evolution. By comparing the DNA sequences of different species, scientists can determine the degree of genetic similarity. Humans and monkeys, for example, share a significant amount of DNA, which is consistent with a common ancestor.
Embryology: The study of embryonic development reveals striking similarities between different organisms, including humans and other primates. These similarities suggest a shared evolutionary history and common developmental pathways.
Biogeography: The distribution of species around the world provides insights into their evolutionary history. The geographical patterns of primates, including their distribution in Africa, Asia, and the Americas, align with expectations based on evolutionary relationships and the movement of ancestral populations.
It's important to note that the evidence for evolution is not based on a single piece of proof but rather on a convergence of evidence from multiple independent lines of inquiry. The scientific consensus on evolution is supported by a vast body of research spanning over a century, and it is widely accepted within the scientific community.