This robot 'duck' could help Japanese rice farmers keep paddy fields clear of weeds

For centuries, rice farmers in Asia have used ducks as a natural alternative to pesticides. While paddling around in flooded paddy fields, ducks tear up weeds and snack on insects, with their manure even acting as additional fertilizer. In the 21st century, this practice is not widespread, but a new technological twist on the method could change that. An engineer working for Japanese carmaker Nissan has built a robot alternative to paddy field ducks. As reported by Nippon.com and Nerdist, he's c...