 List of biogeographical puzzles

The term "biogeographical puzzles" refers to various patterns and discrepancies in the distribution of species across geographical areas that challenge our understanding of ecological and evolutionary processes. Here are some notable examples of biogeographical puzzles: 1. **The Wallace Line**: Proposed by Alfred Russel Wallace, this boundary separates the ecozones of Asia and Australia, with distinct differences in species despite proximity. This raises questions about how species evolve and disperse.