Earthworms, which are land invertebrates, and caecilians, which are amphibians, have evolved with traits that enable them to burrow; both live in moist soil and have an elongated and slender body. Which evolutionary mechanism do they represent?

Question

blues · Answer

When different branches of life are faced with similar challenges in an environment, they sometimes adapt similar strategies for surviving there. In essence, their traits converge on the optimal form for living there.

anonymous · Answer

convergent evolution