The theory of evolution explains how life on Earth has changed over time and how different species are related through common ancestry. It proposes that all living organisms share a common ancestor and have gradually evolved through the mechanism of natural selection.
Related terms
Fossil Record: The fossil record consists of preserved remains or traces (such as bones, shells, imprints) from past geological ages that provide evidence for the existence and characteristics of ancient organisms.
Speciation: Speciation is the process by which new species arise from existing ones due to evolutionary changes accumulating over time.
Genetic Variation: Genetic variation refers to the diversity of genes and traits within a population or species, which is essential for evolution to occur.