Assertion: penguin's bird | /r/HasAspect | wing
Facets:
value: for flying
type: PURPOSE
value: flightless
type: OTHER
Source sentences:
text: While other birds have wings for flying, penguins have adapted flippers to help them swim in the water.
text: Although it's true that all birds have feathers and wings, that doesn't necessarily mean they can all fly.
text: Flightless birds also have more feathers than flying birds.
text: While other birds have wings for flying, penguins have adapted flippers to help them swim in the water.
text: All birds have wings, but this characteristic is not specific to just birds (for example, insects and bats have wings, too).
text: Whereas most birds have wings, the penguin’s wings have evolved into flippers.
text: Although it's true that all birds have feathers and wings, that doesn't necessarily mean they can all fly.
text: Birds have feathers
text: The only critical difference is that birds have feathers.
text: Another difference between mammals and birds is that mammals have fur, while birds have feathers.
text: Penguins have short feathers that grow close together to keep their bodies warm, and only birds have feathers.