Chris HerzfeldPhilosopher of Sciences How an Orangutan Became a Master of Tying Knots Opinion Wattana is a true knot-tying virtuoso. When provided with rolls of paper, strings, laced shoes, pieces of garden hose, the female orangutan made knots using all the materials. Opinion In Photos: Adorable Orangutan Shows Off Knot-Tying Skills These gorgeous images reveal the female orangutan named Wattana, who lives in the Jardin des Plantes Zoo in Paris, where she sews, draws and ties (and unties) knots. By Chris Herzfeld Published 21 May 16
