6. Woodpecker Finches
Woodpecker finches, native to the Galápagos Islands, exhibit unique tool use by employing cactus spines or sticks to extract insects from tree bark. This behavior is particularly prevalent in arid regions, where food is scarce; during the dry season, they acquire up to 50% of their prey using tools. Their innovative strategies are crucial for survival in resource-scarce habitats. Explore this behavior in Smithsonian Magazine: (en.wikipedia.org)