.Highlight :We call this phenomenon convergent evolution, where similar traits evolve independently in species that do not share a recent common ancestry. This means that different species can develop similar traits because they live in similar environments, not because they are closely related. The traits evolved separately due to similar survival pressures.

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“Evolution is the change in a population's genetic composition over time, specifically over generations.”

This statement means that evolution occurs at the level of populations rather than individual organisms. Changes happen gradually over multiple generations as certain genetic traits become more or less common based on survival and reproduction. Individuals may grow or develop during their lifetime, but their genes do not change in a way that affects evolution. Instead, evolution reflects shifts in the average genetic makeup of a population over time.