Simple categories matching legged:

• organism,
• robot,
• animal,
• friend,
• denizen,
• food,
• herbivore,

Members with property legged:

• insect,
• lamb,
• cat_dog,
• dog,
• cat,
• horse,
• coyote,
• deer,
• crustacean,
• mutton,
• isopod,
• human,
• tigers,
• pet_robot,
• humanoid,
• humanoid_robot,
• donkey,
• oat,
• cattle,
• mite,
• rabbit,
• crabs,
• crayfish,
• cheetah,
• cow,
• antelope,
• llama,
• tiger,
• elephant,
• cockroach,
• pet,
• goat,
• dog_pet,
• fox,
• ostrich,
• cows,
• arachnid,
• ram,
• pig,
• spider,
• squirrel,
• canine,
• lion,
• mule,
• wolf,
• sheep,
• vulture,
• bipedal_humanoid,
• swine,
• ass,