Assertion: emperor penguin | /r/HasProperty | unique
Facets:
value: to antarctica
type: LOCATION
value: among birds
type: OTHER
Source sentences:
text: Standing up to 45 inches tall, the Emperor penguin is also unique because it is the only animal who can inhabit the open ice flows of Antarctica during the cold winter months.
text: Emperor penguins are unique among birds, in that they nest in the middle of winter.
text: The Emperor Penguin is unique to Antarctica, and it is the only penguin species that breeds during the Antarctic winter, trekking 31-75 miles over the ice to breeding colonies.