
Theories of evolution
Theories of evolution explain how living things change over time. The most widely accepted idea is natural selection, where individuals with traits better suited to their environment are more likely to survive and reproduce. Over generations, these advantageous traits become more common, leading to new species. Other factors include genetic drift, which causes random changes, and mutations, which introduce new traits. These processes work together, shaping the diversity of life on Earth. Evolution is an ongoing process driven by environmental changes and genetic variation, helping species adapt and survive in changing conditions.