Hooks, bait, and drop zones
For years, scientists believed that tools were used only by higher mammals, but now tool use — the process of utilizing an object to obtain food or achieve other goals — is understood to occur in more than just apes and elephants. While the vast majority of bird species are not known to use tools, the clever behavior has been observed in at least 33 bird families.
One of the earliest known tool users was observed by Charles Darwin on the Galápagos Islands in 1835. Twelve of the 13 species of Darwin’s Finches feed on seeds and show much variation in bill size as
