The phenomenon when species evolve to have similar traits, often due to comparable environmental pressures, is known as convergent evolution. This process occurs when unrelated species independently adapt to similar challenges or niches, leading to analogous structures or functions. An example is the wings of birds and bats, which serve a similar purpose but evolved independently. Convergent evolution highlights the adaptive nature of species and offers insights into how different organisms can develop similar solutions to environmental challenges despite their distinct evolutionary backgrounds.