Assertion: adelie penguin's colony | /r/CapableOf | form compact huddle
Facets:
value: as a defence against the cold
type: PURPOSE
value: with leaning forward on a neighbour
type: OTHER
Source sentences:
text: As a defence against the cold, a colony of emperor penguins forms a compact huddle (also known as the turtle formation) ranging in size from ten to several hundred birds, with each bird leaning forward on a neighbour.