| Theropods are the line of mainly carnivorous, bipedal dinosaurs from which birds evolved. |
| Eventually, the behaviorists caved in and exempted the bipedal ape from their theory of everything. |
| Our exobiologists expect any alien species we may encounter to be bipedal mammals that are approximately our size. |
| Much fossil evidence has been uncovered supporting the idea that birds evolved from a group of bipedal carnivorous dinosaurs called theropods. |
| Tyrannosaurs grew out of a group of lightweight, carnivorous, bipedal dinosaurs that also gave rise to birds. |
| That would have laid the groundwork for the success of the archaic bipedal hominids. |
