Assertion: female hummingbird | /r/Desires | body heat
Facets:
value: to keep the eggs
type: PURPOSE
Source sentences:
text: However, when incubating eggs, female hummingbirds do not enter torpidity because they need body heat to keep the eggs warm.
text: For example, nesting female hummingbirds do not enter torpidity when incubating eggs as they need body heat to keep the eggs warm.