Which term describes the independent evolution of similar traits in unrelated lineages due to similar environments?

• A. Divergent evolution
• B. Natural selection
• C. Convergent evolution
• D. Comparative anatomy

Answer: (C)

Convergent evolution happens when distantly related species evolve similar features because they live in comparable environments and face similar ecological challenges. Even though they don’t share a recent common ancestor with those traits, natural selection favors adaptations that work well in that environment, so they end up looking or functioning alike. A classic example is wings in birds and bats—they both fly and have streamlined wings, yet their limb structures evolved independently, so the similarities are about function rather than shared ancestry. This differs from divergent evolution, where related species become different as they adapt to different niches. The process behind convergent evolution is natural selection acting in parallel on separate lineages, leading to analogous traits that reflect similar environmental demands.