Simple categories matching bipedal:

• dinosaur,
• mammal,
• predator,
• creature,
• carnosaur,
• being,
• animal,

Members with property bipedal:

• carnivorous_theropod,
• man,
• tyrannosaurus,
• coelophysis,
• human,
• ornithopod,
• velociraptor,
• theropod,
• ape,
• deinonychus,
• monkey,
• jerboa,
• kangaroo,
• hadrosaur,