“Bird Mimic” was described by Dr. Sergei Kurzanov in 1981. Contrary to we believed when initial discovered Avimimus had indeed a tail and was 1.5 meter (5ft.) in length and around 20kg in weight. Like its name means it was pretty much like a flightiness bird in appearance. It lived in Mongolia, at 75 million years ago, during Late Cretaceous Period.