Otters that break open shells on their chests? Crows that make hooks to snare grubs? Discover the surprising (and sometimes sneaky ) ways that animals use tools. Many animals use tools in ingenious ways--some use sticks, others use stones, and some can even sew The archerfish spits jets of water to knock down its prey. The palm cockatoo makes drumsticks to impress its mate with a beat. The burrowing owl attracts beetles by decorating...