File:Flarp.jpg

The structure of the flarp's forelimb and hand is similar to that of a flying pterosaur. The fourth finger is long and supports a flap of skin - the vestige of the flying wing. Now the wing flap is used for display - for attracting mates or for warning rivals. The fourth finger and the flap are normally held hack out of the way (a), but when displaying they arc-extended and the bright patterns are shown (b). This display is accompanied by raucous screeches that carry for great distances across the plains. Flarps feed on plants and grasses that grow close to the ground. They have short, sharp teeth positioned at the front of the mouth (c).