to walk on two legs
- idiom
Examples
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Was she evolving toward walking on two legs?
Academic text (2010) -
Jungers believes that Ardipithecus was capable of walking on two legs, but was better adapted to living in trees.
Academic text (2010) -
PHOTO (BLACK & WHITE): Ardi's apelike big toe could be used to grasp branches, but her rigid foot bones may mean she also walked on two legs.
Academic text (2010) -
It represents a behavioral shift; there's no doubt about it. The idea that hominins might have evolved smaller canine teeth at the same time they were developing the ability to walk on two legs has some important implications for Ardi's behavior, according to Lovejoy.
Academic text (2010) -
Humans have the unique ability to walk on two legs, setting them apart from many other species.
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Many cultures celebrate the moment when a child first learns to walk on two legs as a significant milestone.
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The evolutionary adaptation that allows us to walk on two legs has been crucial for our ability to explore diverse environments.
Synonyms
To show someone as an example to praise or admire
To seem perfect and able to do anything
To admire someone too much and treat them as perfect
Surface Forms
Morphology
The meaning is directly built from the constituents: 'walk' + 'on' + 'two' + 'legs' yields the literal sense of moving using two legs, and that literal sense readily extends to refer to humans or to qualify someone among humans. This compositional, mostly literal relation is cross-linguistically common, so a B1 learner who knows the words will grasp the expression's intended meaning.
Etymology
Walk on two legs comes from the clear picture of a person who walks on two legs, not on four like many animals. So, saying someone 'walked on two legs' is a strong way to praise them — it means they are 'very special' or 'the most remarkable person' among humans.