Final answer:
Option b. The example of convergent evolution is when unrelated species develop similar traits, such as wings in birds and insects, highlighting the role of similar environmental pressures in shaping adaptations.
Step-by-step explanation:
The situation most likely an example of convergent evolution is 'b) Two species from different ancestors developing similar traits.' Convergent evolution occurs when species from different evolutionary branches develop similar structures or functions due to similar selective pressures, despite their distinct lineages. Examples include the development of wings in both birds and insects for flight or similar body shapes in aquatic animals like dolphins and fish for swimming efficiently through water.
Divergent evolution, on the other hand, refers to two species that are related and sharing a common ancestor but developing distinct traits due to adapting to different environments. The formation of new species through divergent evolution can be observed in the variety of limb structures in vertebrates or the diversity of beak shapes in Darwin's finches.
In summary, while convergent evolution highlights the independent development of similar traits in unrelated species, divergent evolution demonstrates the variation that can occur within a lineage as it adapts to different ecological niches.