Wallace's Sarawak Law

Wallace's Sarawak Law states that, "Every species has come into existence coincident both in space and time with a pre-existing, closely allied species." This means that new species tend to appear near relatives in both location and era, reflecting that species evolve gradually from common ancestors and are influenced by their environment. Essentially, it highlights the interconnected patterns of biological diversity, where neighboring and similar species are linked through evolutionary processes, occurring historically in specific regions and moments.