Science & Nature: A Giraffe's Sticky, Black Tongue Can Be More Than 18 Inches Long And Is Used To Gather Food Into The Mouth. Males Typically Feed With Their Head And Neck At ____ ________ _______, Often With Their Tongues Extended To Reach The Shoots On The Underside Of The Mature Tree Canopy. Females Feed At The Body Or Knee Height, With Their Necks Curled Over