Assertion: hummingbird's nectar | /r/CapableOf | amount to 100-200% of their body weight
Facets:
value: often
type: TEMPORAL
Source sentences:
text: As a result of their unique but inefficient means of flight, they must consume enormous amounts of food each day, with nectar often amounting to 100-200% of their body weight.
text: And, because of this unique but inefficient means of flight, they must eat a lot of food each day, with nectar often amounting to 100-200% of their body weight.